SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K/A


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  August 26, 2002


                              IMPAC SECURED ASSETS CORP.
          (as company (the "Company"), Impac Funding Corporation, as master
          servicer (the "Master Servicer"), and Bankers Trust Company of
          California, N.A., as trustee).


                                IMPAC SECURED ASSETS CORP
                (Exact name of Registrant as specified in its Charter)


                                      CALIFORNIA
                     (State or Other Jurisdiction of Incorporation)

               333-66328                          33-071-5871
          (Commission File Number)        (I.R.S. Employer Identification No.)


           1401 DOVE STREET
           NEWPORT BEACH                               92660
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (949) 475-3600



     Item 5.  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 7.  Financial Statement and Exhibits

     Exhibits:  (as noted in Item 5 above)

     Monthly Remittance Statement to the Certificateholders dated as of
     August 26, 2002.



                                     SIGNATURE


               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company, N.A.,
                                  not in its individual capacity, but solely
                                  as a duly authorized agent of the Registrant
                                  pursuant to the Pooling and Servicing
                                  Agreement, dated as of March 1, 2002.


          Date:  October 30, 2002           By:  /s/ Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          Monthly Remittance Statement to the Certificateholders
          dated as of August 26, 2002.














               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               August 26, 2002 Distribution
               Contents
                                             TABLE OF CONTENTS

>                                         Page
                                             1.             Contents
>                                         1
                                             2.            Certificate Payment
> Report                                  2
                                             3.             Collection Account
>Report                                   8
                                             4.             Credit Enhancement
>Report                                   11
                                             5.             Collateral Report
>                                         12
                                             6.            Delinquency Report
>                                         15
                                             7.             REO Report
>                                         18
                                             8.             Prepayment Report
>                                         19
                                             9.             Prepayment Detail R
>eport                                    22
                                             10.            Realized Loss Repor
>t                                        23
                                             11.            Realized Loss Detai
>l Report                                 26
                                             12.            Triggers, Adj. Rate
> Cert. and Miscellaneous Report          27
                                             13.            Additional Certific
>ate Report                               28
                                                            Total Number of Pag
>es                                                    28
                                             CONTACTS
                                                            Administrator:   Ja
>mes F Noriega
                                                            Direct Phone Number
>:   (714)247-6281
                                                            Address:   Deutsche
> Bank
                                                                             17
>61 E. St. Andrew Place, Santa Ana, CA 92705
                                                            Web Site:   http://
>www-apps.gis.deutsche-bank.com/invr
                                                            Factor Information:
>   (800) 735-7777
                                                            Main Phone Number:
>  (714) 247-6000
ISSUANCE INFORMATION
               Seller:                       Impac Secured Asset Corp.
>                                         Cut-Off Date:              January 1,
>2002
               Certificate Insurer(s):
>                                         Closing Date:             January 31
>, 2002

>                                       First Payment Date:    February 25, 20
>02
               Servicer(s):                 Impac Funding Corporation      Mas
>ter Servicer
                                             GMAC      Sub-Servicer

>                                       Distribution Date:        August 26, 2
>002
               Underwriter(s):              Bear, Stearns & Co. Inc      Under
>writer                                 Record Date:                July 31, 2
>002

>           Page 1 of 28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC I
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - Current Period
                                                                         Prio
>r
>       Current
               Class          Original                                   Prin
>cipal                                    Total          Realized    Deferred
>       Principal
Class          Type           Face Value                                 Bala
>nce        Interest       Principal      Distribution   Losses       Interest
>       Balance
                                                                          (1)
>           (2)            (3)            (4)=(2)+(3)    (5)            (6)
>       (7)=(1)-(3)-(5)+(6)
LT1A                              173248268.9
>162549352.7     1061728.95    995519.6437    2057248.594              0
>      0    161553833.1
LT1B                                  1194.11
>  1142.7455           7.74         4.8382        12.5782              0
>      0      1137.9073
LT1C                                   538.39
>   527.9363           3.17         0.9981         4.1681              0
>      0       526.9382
LT1D                                 20000000
>   20000000      130634.65              0      130634.65              0
>      0       20000000
LT1E                                  5000000
>    5000000       32658.66              0       32658.66              0
>      0        5000000
LT1F                                  1750000
>    1750000       11430.53              0       11430.53              0
>      0        1750000
LT1P                                      100
>        100           0.65              0           0.65              0
>      0            100
R-1                                         0
>          0              0              0              0              0
>      0              0
Total                             200000101.4
>189301123.4     1236464.35      995525.48     2231989.83              0
>      0    188305597.9
               Interest Accrual Detail                                    Curr
>ent Period Factor Information per $1,000 of Original Face

>           Orig. PrincipalPrior
>       Current
               Period         Period
>           (with Notional)Principal                                    Total
>       Principal
Class          Starting       Ending                        Method        Cusi
>p          Balance        Balance        Interest       Principal    Distribu
>tion   Balance

>                          (1)            (2)            (3)          (4)=(2)+
>(3)    (5)
LT1A                                                        F-30/360
>               173248268.9    938.2451771    6.128366863    5.746202546   11.8
>7456941    932.4989746
LT1B                                                        F-30/360
>                   1194.11    956.9851186    6.481814908    4.051720528  10.5
>3353544    952.9333981
LT1C                                                        F-30/360
>                    538.39    980.5834061     5.88792511    1.853860584  7.74
>1785694    978.7295455
LT1D                                                        F-30/360
>                  20000000           1000      6.5317325              0    6.
>5317325           1000
LT1E                                                        F-30/360
>                   5000000           1000       6.531732              0     6
>.531732           1000
LT1F                                                        F-30/360
>                   1750000           1000    6.531731429              0  6.53
>1731429           1000
LT1P                                                        F-30/360
>                       100           1000            6.5              0
>    6.5           1000
R-1                                                         F-30/360
>                         0              0              0              0
>      0              0

>                          Page 2 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC I
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - to Date

>
>       Current
               Original                                                    Unsc
>heduled    Scheduled      Total          Total          Realized      Deferred
>       Principal
Class          Face Value                    Interest                      Prin
>cipal      Principal      Principal      Distribution   Losses        Interest
>       Balance
               (1)                           (2)                           (3)
>           (4)            (5)=(3)+(4)    (6)=(2)+(5)    (7)            (8)
>       (9)=(1)-(5)-(7)+(8)
LT1A               173248268.9                    7728201.11
> 10668789.9    1025645.907    11694435.81    19422636.92              0
>      0    161553833.1
LT1B                   1194.11                          55.6
>      51.28         4.9226        56.2026       111.8026              0
>      0      1137.9073
LT1C                    538.39                         22.55
>      10.46         0.9919        11.4519        34.0019              0
>      0       526.9382
LT1D                  20000000                      916386.1
>          0              0              0       916386.1              0
>      0       20000000
LT1E                   5000000                     229096.52
>          0              0              0      229096.52              0
>      0        5000000
LT1F                   1750000                      80183.79
>          0              0              0       80183.79              0
>      0        1750000
LT1P                       100                      28380.16
>          0              0              0       28380.16              0
>      0            100
R-1                          0                             0
>          0              0              0              0              0
>      0              0
Total              200000101.4                    8982325.83
>10668851.64    1025651.822    11694503.46    20676829.29              0
>      0    188305597.9
               Interest Detail
               Pass-          Prior Principal
>           Non-           Prior          Unscheduled                   Paid or
>       Current
               Through        (with Notional)                              Accr
>ued        Supported      Unpaid         Interest       Optimal       Deferred
>       Unpaid
Class          Rate           Balance                                      Inte
>rest       Interest SF    Interest       Adjustments    Interest      Interest
>       Interest
                                                                           (1)
>           (2)            (3)            (4)            (5)=(1)-(2)+(3)(6)
>       (7)=(5)-(6)
LT1A               0.078380793    162549352.7
> 1061728.95              0              0              0     1061728.95   106
>1728.95              0
LT1B               0.081249357      1142.7455
>       7.74              0              0              0           7.74
>   7.74              0
LT1C               0.071956869       527.9363
>       3.17              0              0              0           3.17
>   3.17              0
LT1D               0.078380793       20000000
>  130634.65              0              0              0      130634.65     13
>0634.65              0
LT1E               0.078380793        5000000
>   32658.66              0              0              0       32658.66      3
>2658.66              0
LT1F               0.078380793        1750000
>   11430.53              0              0              0       11430.53      1
>1430.53              0
LT1P               0.078380793            100
>       0.65              0              0              0           0.65
>   0.65              0
R-1                                         0
>          0              0              0              0              0
>      0              0
Total                             189301123.4
> 1236464.35              0              0              0     1236464.35   123
>6464.35              0

>                          Page 3 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC II
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - Current Period
                                                                           Prio
>r
>       Current
               Class          Original                                     Prin
>cipal                                    Total          Realized      Deferred
>       Principal
Class          Type           Face Value                                   Bala
>nce        Interest       Principal      Distribution   Losses        Interest
>       Balance
                                                                           (1)
>           (2)            (3)            (4)=(2)+(3)    (5)            (6)
>       (7)=(1)-(3)-(5)+(6)
LT2-1AA                             135091675
>128247855.9      728295.83       689556.4     1417852.23              0
>      0    127558299.5
LT2-AI1                                308000
>  231548.47        1314.92        7036.29        8351.21              0
>      0      224512.18
LT2-AI2                                179000
>     179000        1016.51              0        1016.51              0
>      0         179000
LT2-AI3                                191000
>     191000        1084.65              0        1084.65              0
>      0         191000
LT2-AI4                                255000
>     255000         1448.1              0         1448.1              0
>      0         255000
LT2-AI5                                100000
>     100000         567.88              0         567.88              0
>      0         100000
LT2-AI6                                252440
>     252440        1433.56              0        1433.56              0
>      0         252440
LT2-1M1                            41354.3473
> 41354.3473         234.84              0         234.84              0
>      0     41354.3473
LT2-1M2                            27569.5648
> 27569.5648         156.56              0         156.56              0
>      0     27569.5648
LT2-1B                             24123.3692
> 24123.3692         136.99              0         136.99              0
>      0     24123.3692
LT2-1ZZ                            1378486.49
>1315268.156        7469.16        7036.29       14505.45              0
>      0    1308231.866
LT2-2AA                           60908326.36
> 57267147.1      325209.52      286058.57      611268.09              0
>      0    56981088.53
LT2-AII                                579560
>  539021.66           3061        2918.97        5979.97              0
>      0      536102.69
LT2-2M1                            18645.6527
> 18645.6527         105.89              0         105.89              0
>      0     18645.6527
LT2-2M2                            12430.4352
> 12430.4352          70.59              0          70.59              0
>      0     12430.4352
LT2-2B                             10876.6308
> 10876.6308          61.77              0          61.77              0
>      0     10876.6308
LT2-2ZZ                             621513.54
>587742.0903        3337.68        2918.97        6256.65              0
>      0    584823.1203
LT2A-IO                                     0
>          0      161458.33              0      161458.33              0
>      0              0
LT2P                                      100
>        100           0.57              0           0.57              0
>      0            100
R-2                                         0
>          0              0              0              0              0
>      0              0
Total                             200000101.4
>189301123.4     1236464.35      995525.49     2231989.84              0
>      0    188305597.9
               Interest Accrual Detail                                     Curr
>ent Period Factor Information per $1,000 of Original Face

>           Orig. PrincipalPrior
>       Current
               Period         Period
>           (with Notional)Principal                                    Total
>       Principal
Class          Starting       Ending                        Method         Cusi
>p          Balance        Balance        Interest       Principal     Distribu
>tion   Balance

>                          (1)            (2)            (3)          (4)=(2)+
>(3)    (5)
LT2-1AA                                                     F-30/360
>                 135091675    949.3394462    5.391122955    5.104358948   10.
>4954819    944.2350872
LT2-AI1                                                     F-30/360
>                    308000    751.7807468    4.269220779     22.8450974  27.1
>1431818    728.9356494
LT2-AI2                                                     F-30/360
>                    179000           1000    5.678826816              0  5.67
>8826816           1000
LT2-AI3                                                     F-30/360
>                    191000           1000    5.678795812              0  5.67
>8795812           1000
LT2-AI4                                                     F-30/360
>                    255000           1000    5.678823529              0  5.67
>8823529           1000
LT2-AI5                                                     F-30/360
>                    100000           1000         5.6788              0
> 5.6788           1000
LT2-AI6                                                     F-30/360
>                    252440           1000    5.678814768              0  5.67
>8814768           1000
LT2-1M1                                                     F-30/360
>                41354.3473           1000    5.678725825              0  5.67
>8725825           1000
LT2-1M2                                                     F-30/360
>                27569.5648           1000    5.678725839              0  5.67
>8725839           1000
LT2-1B                                                      F-30/360
>                24123.3692           1000    5.678725839              0  5.67
>8725839           1000
LT2-1ZZ                                                     F-30/360
>                1378486.49    954.1393157    5.418377368    5.104359057  10.5
>2273643    949.0349567
LT2-2AA                                                     F-30/360
>               60908326.36    940.2186946    5.339327797    4.696542937  10.0
>3587073    935.5221517
LT2-AII                                                     F-30/360
>                    579560    930.0532473    5.281592933    5.036527711  10.3
>1812064    925.0167196
LT2-2M1                                                     F-30/360
>                18645.6527           1000    5.679071776              0  5.67
>9071776           1000
LT2-2M2                                                     F-30/360
>                12430.4352           1000    5.678803587              0  5.67
>8803587           1000
LT2-2B                                                      F-30/360
>                10876.6308           1000    5.679148363              0  5.67
>9148363           1000
LT2-2ZZ                                                     F-30/360
>                 621513.54     945.662568    5.370245031    4.696550939  10.0
>6679597    940.9660171
LT2A-IO                                                     F-30/360
>                  26750000    934.5794393    6.035825421              0  6.03
>5825421    934.5794393
LT2P                                                        F-30/360
>                       100           1000            5.7              0
>    5.7           1000
R-2                                                         F-30/360
>                         0              0              0              0
>      0              0

>                          Page 4 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC II
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - to Date

>
>       Current
               Original                                                    Unsc
>heduled    Scheduled      Total          Total          Realized      Deferred
>       Principal
Class          Face Value                    Interest                      Prin
>cipal      Principal      Principal      Distribution   Losses        Interest
>       Balance
               (1)                           (2)                           (3)
>           (4)            (5)=(3)+(4)    (6)=(2)+(5)    (7)            (8)
>       (9)=(1)-(5)-(7)+(8)
LT2-1AA              135091675                    5249809.06
>  6880980.3      652395.18     7533375.48    12783184.54              0
>      0    127558299.5
LT2-AI1                 308000                      10927.64
>   76216.84        7270.98       83487.82       94415.46              0
>      0      224512.18
LT2-AI2                 179000                       7104.19
>          0              0              0        7104.19              0
>      0         179000
LT2-AI3                 191000                       7580.45
>          0              0              0        7580.45              0
>      0         191000
LT2-AI4                 255000                      10120.51
>          0              0              0       10120.51              0
>      0         255000
LT2-AI5                 100000                       3968.82
>          0              0              0        3968.82              0
>      0         100000
LT2-AI6                 252440                       10018.9
>          0              0              0        10018.9              0
>      0         252440
LT2-1M1             41354.3473                       1641.27
>          0              0              0        1641.27              0
>      0     41354.3473
LT2-1M2             27569.5648                       1094.18
>          0              0              0        1094.18              0
>      0     27569.5648
LT2-1B              24123.3692                        957.41
>          0              0              0         957.41              0
>      0     24123.3692
LT2-1ZZ             1378486.49                      47109.03
>   70214.07         6657.1       76871.17       123980.2              0     66
>16.5462    1308231.866
LT2-2AA            60908326.36                    2350997.87
> 3575426.57      351811.26     3927237.83      6278235.7              0
>      0    56981088.53
LT2-AII                 579560                      22253.65
>   39529.92        3927.39       43457.31       65710.96              0
>      0      536102.69
LT2-2M1             18645.6527                        740.02
>          0              0              0         740.02              0
>      0     18645.6527
LT2-2M2             12430.4352                        493.35
>          0              0              0         493.35              0
>      0     12430.4352
LT2-2B              10876.6308                        431.68
>          0              0              0         431.68              0
>      0     10876.6308
LT2-2ZZ              621513.54                      20677.39
>   36483.95        3589.91       40073.86       60751.25              0     33
>83.4403    584823.1203
LT2A-IO                      0                    1198020.85
>          0              0              0     1198020.85              0
>      0              0
LT2P                       100                      28379.56
>          0              0              0       28379.56              0
>      0            100
R-2                          0                             0
>          0              0              0              0              0
>      0              0
Total              200000101.4                    8972325.83
>10678851.65     1025651.82    11704503.47     20676829.3              0     99
>99.9865    188305597.9
               Interest Detail
               Pass-          Prior Principal
>           Non-           Prior          Unscheduled                  Paid or
>       Current
               Through        (with Notional)                              Accr
>ued        Supported      Unpaid         Interest       Optimal       Deferred
>       Unpaid
Class          Rate           Balance                                      Inte
>rest       Interest SF    Interest       Adjustments    Interest      Interest
>       Interest
                                                                           (1)
>           (2)            (3)            (4)            (5)=(1)-(2)+(3)(6)
>       (7)=(5)-(6)
LT2-1AA            0.068145776    128247855.9
>  728295.81              0              0              0      728295.83     72
>8295.83              0
LT2-AI1            0.068145776      231548.47
>    1314.92              0              0              0        1314.92
>1314.92              0
LT2-AI2            0.068145776         179000
>    1016.51              0              0              0        1016.51
>1016.51              0
LT2-AI3            0.068145776         191000
>    1084.65              0              0              0        1084.65
>1084.65              0
LT2-AI4            0.068145776         255000
>     1448.1              0              0              0         1448.1
> 1448.1              0
LT2-AI5            0.068145776         100000
>     567.88              0              0              0         567.88
> 567.88              0
LT2-AI6            0.068145776         252440
>    1433.56              0              0              0        1433.56
>1433.56              0
LT2-1M1            0.068145776     41354.3473
>     234.84              0              0              0         234.84
> 234.84              0
LT2-1M2            0.068145776     27569.5648
>     156.56              0              0              0         156.56
> 156.56              0
LT2-1B             0.068145776     24123.3692
>     136.99              0              0              0         136.99
> 136.99              0
LT2-1ZZ            0.068145776    1315268.156
>    7469.16              0              0              0        7469.16
>7469.16              0
LT2-2AA            0.068145776     57267147.1
>  325209.52              0              0              0      325209.52     32
>5209.52              0
LT2-AII            0.068145776      539021.66
>       3061              0              0              0           3061
>   3061              0
LT2-2M1            0.068145776     18645.6527
>     105.89              0              0              0         105.89
> 105.89              0
LT2-2M2            0.068145776     12430.4352
>      70.59              0              0              0          70.59
>  70.59              0
LT2-2B             0.068145776     10876.6308
>      61.77              0              0              0          61.77
>  61.77              0
LT2-2ZZ            0.068145776    587742.0903
>    3337.68              0              0              0        3337.68
>3337.68              0
LT2A-IO                 0.0775       25000000
>  161458.33              0              0              0      161458.33     16
>1458.33              0
LT2P               0.068145776            100
>       0.57              0              0              0           0.57
>   0.57              0
R-2                                         0
>          0              0              0              0              0
>      0              0
Total                             214301123.4
> 1236464.33              0              0              0     1236464.35    123
>6464.35              0

>                          Page 5 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC III
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - Current Period
                                                                           Prio
>r
>       Current
               Class          Original                                     Prin
>cipal                                    Total          Realized      Deferred
>       Principal
Class          Type           Face Value                                   Bala
>nce        Interest       Principal      Distribution   Losses        Interest
>       Balance
                                                                           (1)
>           (2)            (3)            (4)=(2)+(3)    (5)            (6)
>       (7)=(1)-(3)-(5)+(6)
A-I-1          FLT                   30800000
>23154856.91       42540.72      703628.98       746169.7              0
>      0    22451227.93
A-I-2          AFC, SEQ              17900000
>   17900000        68467.5              0        68467.5              0
>      0       17900000
A-I-3          AFC, SEQ              19100000
>   19100000       88655.83              0       88655.83              0
>      0       19100000
A-I-4          STEP,AFC              25500000
>   25500000       133662.5              0       133662.5              0
>      0       25500000
A-I-5          STEP,AFC              10000000
>   10000000          56250              0          56250              0
>      0       10000000
A-I-6          STEP,AFC              25244000
>   25244000      147887.77              0      147887.77              0
>      0       25244000
A-II           STEP,AFC              57956000
>53902166.48      291970.07       291896.5      583866.57              0
>      0    53610269.98
A-IO           IO,NTL,DRB                   0
>          0      161458.33              0      161458.33              0
>      0              0
M-1            MEZ,STEP,AF            6000000
>    6000000          35000              0          35000              0
>      0        6000000
M-2            MEZ,STEP,AF            4000000
>    4000000       23333.33              0       23333.33              0
>      0        4000000
B              MEZ,STEP,AF            3500000
>    3500000       20416.67              0       20416.67              0
>      0        3500000
C              SUB                       1.36
>    1000000       173439.4              0       173439.4              0
>      0        1000000
P              SUB                        100
>        100              0              0              0              0
>      0            100
R-3            R                            0
>          0              0              0              0              0
>      0              0
Total                             200000101.4
>189301123.4     1243082.12      995525.48      2238607.6              0
>      0    188305597.9
               Interest Accrual Detail                                     Curr
>ent Period Factor Information per $1,000 of Original Face

>           Orig. PrincipalPrior
>       Current
               Period         Period
>           (with Notional)Principal                                    Total
>       Principal
Class          Starting       Ending                        Method         Cusi
>p          Balance        Balance        Interest       Principal     Distribu
>tion   Balance

>                          (1)            (2)            (3)           (4)=(2)+
>(3)    (5)
A-I-1                    37462          37493               F-30/360       4525
>4TKM5             30800000    751.7810684    1.381192208    22.84509675   24.2
>2628896    728.9359716
A-I-2                                                       F-30/360       4525
>4TKN3             17900000           1000          3.825              0
>  3.825           1000
A-I-3                                                       F-30/360       4525
>4TKP8             19100000           1000    4.641666492              0   4.64
>1666492           1000
A-I-4                                                       F-30/360       4525
>4TKQ6             25500000           1000    5.241666667              0   5.24
>1666667           1000
A-I-5                                                       F-30/360       4525
>4TKR4             10000000           1000          5.625              0
>  5.625           1000
A-I-6                                                       F-30/360       4525
>4TKX1             25244000           1000    5.858333465              0   5.85
>8333465           1000
A-II                                                        F-30/360       4525
>4TKS2             57956000    930.0532556    5.037788495    5.036519083   10.0
>7430758    925.0167366
A-IO                                                        F-30/360       4525
>4TKT0             26750000    934.5794393    6.035825421              0   6.03
>5825421    934.5794393
M-1                                                         F-30/360       4525
>4TKU7              6000000           1000    5.833333333              0   5.83
>3333333           1000
M-2                                                         F-30/360       4525
>4TKV5              4000000           1000      5.8333325              0     5.
>8333325           1000
B                                                           F-30/360       4525
>4TKW3              3500000           1000    5.833334286              0   5.83
>3334286           1000
C                                                           F-30/360       4525
>4TKZ6          200000101.4    951.5051347    0.867196561              0   0.86
>7196561    946.5275097
P                                                           F-30/360       4525
>4TKY9                  100           1000              0              0
>      0           1000
R-3                                                         F-30/360       4525
>4TLA0                    0              0              0              0
>      0              0

>                          Page 6 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REMIC III
               Certificate Payment Report for August 26, 2002 Distribution
               Distribution in Dollars - to Date

>
>       Current
               Original                                                    Unsc
>heduled    Scheduled      Total          Total          Realized      Deferred
>       Principal
Class          Face Value                    Interest                      Prin
>cipal      Principal      Principal      Distribution   Losses        Interest
>       Balance
               (1)                           (2)                           (3)
>           (4)            (5)=(3)+(4)    (6)=(2)+(5)    (7)            (8)
>       (9)=(1)-(5)-(7)+(8)
A-I-1                 30800000                     327899.35
>7662354.176    686417.8981    8348772.074    8676671.424              0
>      0    22451227.93
A-I-2                 17900000                      479272.5
>          0              0              0       479272.5              0
>      0       17900000
A-I-3                 19100000                     620590.81
>          0              0              0      620590.81              0
>      0       19100000
A-I-4                 25500000                      935637.5
>          0              0              0       935637.5              0
>      0       25500000
A-I-5                 10000000                        393750
>          0              0              0         393750              0
>      0       10000000
A-I-6                 25244000                    1035214.38
>          0              0              0     1035214.38              0
>      0       25244000
A-II                  57956000                       2125921
>4006496.064    339233.9518    4345730.016    6471651.016              0
>      0    53610269.98
A-IO                         0                    1198020.85
>          0              0              0     1198020.85              0
>      0              0
M-1                    6000000                        245000
>          0              0              0         245000              0
>      0        6000000
M-2                    4000000                     163333.35
>          0              0              0      163333.35              0
>      0        4000000
B                      3500000                     142916.68
>          0              0              0      142916.68              0
>      0        3500000
C                         1.36                     335178.39
>          0              0              0      335178.39            0    9999
>98.6384        1000000
P                          100                      28375.58
>          0              0              0       28375.58              0
>      0            100
R-3                          0                             0
>          0              0              0              0              0
>      0              0
Total              200000101.4                    8031110.39
>11668850.24     1025651.85    12694502.09    20725612.48            0    9999
>98.6384    188305597.9
               Interest Detail
               Pass-          Prior Principal
>           Non-           Prior          Unscheduled                   Paid or
>       Current
               Through        (with Notional)                              Accr
>ued        Supported      Unpaid         Interest       Optimal       Deferred
>       Unpaid
Class          Rate           Balance                                      Inte
>rest       Interest SF    Interest       Adjustments    Interest      Interest
>       Interest
                                                                           (1)
>           (2)            (3)            (4)            (5)=(1)-(2)+(3)(6)
>       (7)=(5)-(6)
A-I-1                0.0206688    23154856.91
>   42540.72              0              0              0       42540.72     4
>2540.72              0
A-I-2                   0.0459       17900000
>    68467.5              0              0              0        68467.5
>68467.5              0
A-I-3                   0.0557       19100000
>   88655.83              0              0              0       88655.83      8
>8655.83              0
A-I-4                   0.0629       25500000
>   133662.5              0              0              0       133662.5      1
>33662.5              0
A-I-5                   0.0675       10000000
>      56250              0              0              0          56250
>  56250              0
A-I-6              0.068145776       25244000
>     143356              0              0        4531.77         143356     14
>7887.77              0
A-II                     0.065    53902166.48
>  291970.07              0              0              0      291970.07     29
>1970.07              0
A-IO                    0.0775       25000000
>  161458.33              0              0              0      161458.33     16
>1458.33              0
M-1                0.068145776        6000000
>   34072.89              0              0         927.11       34072.89
>  35000              0
M-2                0.068145776        4000000
>   22715.26              0              0         618.07       22715.26      2
>3333.33              0
B                  0.068145776        3500000
>   19875.85              0              0         540.82       19875.85      2
>0416.67              0
C                  0.010994509    190301123.4
>   173439.4              0              0              0       173439.4      1
>73439.4              0
P                                         100
>          0              0              0              0              0
>      0              0
R-3                                         0
>          0              0              0              0              0
>      0              0
Total                             403602246.8
> 1236464.35              0              0        6617.77     1236464.35    124
>3082.12              0

>                          Page 7 of  28
>       (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collection Account Report for August 26, 2002 Distribution
               Collection Account Report
SUMMARY
>           GROUP 2        GROUP 1        TOTAL
               Principal Collections
>           291,896.50     703,628.98     995,525.48
               Other Principal Deposits
>           0.00           0.00           0.00
               TOTAL NET PRINCIPAL
>           291,896.50     703,628.98     995,525.48
               Interest Collections
>           355,816.21     907,059.40     1,262,875.61
               Interest Withdrawals
>           0.00           0.00           0.00
               Interest Fees
>           (4,762.00)     (15,031.50)    (19,793.50)
               TOTAL NET INTEREST
>           351,054.21     892,027.90     1,243,082.11
               TOTAL AVAILABLE FUNDS TO BONDHOLDERS
>           642,950.71     1,595,656.88   2,238,607.59
PRINCIPAL - COLLECTIONS
>           GROUP 2        GROUP 1        TOTAL
               Scheduled Principal
>           54,560.12      101,572.12     156,132.24
               Curtailments
>           237,336.38     74,984.80      312,321.18
               Prepayments In Full
>           0.00           527,072.06     527,072.06
               Repurchases/Substitutions
>           0.00           0.00           0.00
               Liquidations
>           0.00           0.00           0.00
               Insurance Principal
>           0.00           0.00           0.00
               Other Principal
>           0.00           0.00           0.00
               Delinquent Principal
>           (43,019.72)    (80,346.46)    (123,366.18)
               Total Realized Loss Of Principal
>           0.00           0.00           0.00
               Pre-funding Principal Paid
>           0.00           0.00           0.00
               Principal Advanced
>           43,019.72      80,346.46      123,366.18
               TOTAL PRINCIPAL COLLECTED
>           291,896.50     703,628.98     995,525.48
                                                            Page 8 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collection Account Report for August 26, 2002 Distribution
               Collection Account Report
PRINCIPAL - WITHDRAWALS
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - COLLECTIONS
>           GROUP 2        GROUP 1        TOTAL
               Scheduled Interest
>           366,120.96     925,547.42     1,291,668.38
               Repurchases/Substitutions
>           0.00           0.00           0.00
               Liquidation Interest
>           0.00           0.00           0.00
               Insurance Interest
>           0.00           0.00           0.00
               Other Interest
>           0.00           0.00           0.00
               Prepayment Interest Shortfalls
>           0.00           (1,919.07)     (1,919.07)
               Delinquent Interest
>           (297,141.00)   (746,242.84)   (1,043,383.84)
               Interest Realized Losses
>           0.00           0.00           0.00
               Compensating Interest
>           0.00           1,919.07       1,919.07
               Civil Relief Act Shortfalls
>           0.00           0.00           0.00
               Prepayment Premiums
>           0.00           0.00           0.00
               Pre-funding Intererst Coverage
>           0.00           0.00           0.00
               Interest Advanced
>           286,192.31     721,780.99     1,007,973.30
               Net WAC Shortfall
>           643.94         5,973.83       6,617.77
               TOTAL INTEREST COLLECTED
>           355,816.21     907,059.40     1,262,875.61
                                                            Page 9 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collection Account Report for August 26, 2002 Distribution
               Collection Account Report
INTEREST - WITHDRAWALS
>           GROUP 2        GROUP 1        TOTAL
               Undistributed Receipts on Repurchased Loans
>           0.00           0.00           0.00
               Reimburse Advances from Late Collections
>           0.00           0.00           0.00
               Reimbursement for Expenses
>           0.00           0.00           0.00
               Reimbursements to Sub-Servicer
>           0.00           0.00           0.00
               Reimburse Fees and Advances from Late Collections
>           0.00           0.00           0.00
               Interest Earnings on the Custodial Account
>           0.00           0.00           0.00
               Prev. Unreimbursed P&I Advances
>           0.00           0.00           0.00
               Prev. Unreimbursed Servicing Advances
>           0.00           0.00           0.00
               TOTAL INTEREST WITHDRAWALS
>           0.00           0.00           0.00
INTEREST - OTHER ACCOUNTS
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - FEES
>           GROUP 2        GROUP 1        TOTAL
               Radian PMI Fee
>           1,588.48       7,867.79       9,456.27
               Trustee Fee Amount
>           486.97         1,090.54       1,577.51
               Extraordinary Trust Fund Expenses
>           0.00           0.00           0.00
               Current Servicing Fees
>           13,635.24      30,535.03      44,170.27
               Delinquent Servicing Fees
>           (10,948.69)    (24,461.86)    (35,410.55)
               TOTAL INTEREST OTHER FEES
>           4,762.00       15,031.50      19,793.50
                                                            Page 10 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Credit Enhancement Report for August 26, 2002 Distribution
               Credit Enhancement Report
ACCOUNTS
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
INSURANCE
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
STRUCTURAL FEATURES
>           GROUP 2        GROUP 1        TOTAL
               Overcollateralization Amount
>                                         1,000,000.00
               Excess Overcollateralized Amount
>                                         0.00
               Overcollateralization Release Amount
>                                         0.00
               Overcollateralization Deficiency Amount
>                                         0.00
               Overcollateralization Target Amount
>                                         1,000,000.00
                                                            Page 11 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collateral Report for August 26, 2002 Distribution
               Collateral Report
COLLATERAL
>           GROUP 2        GROUP 1        TOTAL
               Loan Count:
               Original
>                       120            695            815
               Prior
>                       142            850            992
               Prefunding
>                         0              0              0
               Scheduled Paid Offs
>                         0              0              0
               Full Voluntary Prepayments
>                         0             -4             -4
               Repurchases
>                         0              0              0
               Liquidations
>                         0              0              0
               Current
>                       142            846            988
               Principal Balance:
               Original
>               48517658.43    107380483.9    155898142.4
               Prior
>               58436718.27    130864405.1    189301123.4
               Prefunding
>                         0              0              0
               Scheduled Principal
>                 -54560.12     -101572.12     -156132.24
               Partial and Full Voluntary Prepayments
>                -237336.38     -602056.86     -839393.24
               Repurchases
>                         0              0              0
               Liquidations
>                         0              0              0
               Current
>               58144821.77    130160776.1    188305597.9
PREFUNDING
>           GROUP 2        GROUP 1        TOTAL
               PRE-FUNDING ACCOUNT
               Beginning Pre-Funded Amount
>                                         0.00
               Balance of Subsequent Mortgage Loans added this period
>                                         0.00
               Withdrawal remaining amounts
>                                         0.00
               Pre-Funding Account Ending Balance
>                                         0.00
               INTEREST COVERAGE ACCOUNT
               Beginning Interest Coverage Amount
>                                         735,957.61
               Interest Coverage withdrawn to support certificates
>                                         0.00
               Interest Coverage withdrawn from account
>                                         735,957.61
               Ending Interest Coverage Amount
>                                         0.00
                    Group 1
                    Group 2
Current Prin Balance by Groups (in millions of dollars)                   Tota
>l Current Principal Balance (in millions of dollars)
                                                            Page 12 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collateral Report for August 26, 2002 Distribution
               Collateral Report
CHARACTERISTICS
>           GROUP 2        GROUP 1        TOTAL
               Weighted Average Coupon Original
>               0.076153553    0.084312099    0.081773046
               Weighted Average Coupon Prior
>               0.075170985    0.084927384    0.081926844
               Weighted Average Coupon Current
>               0.075183064    0.084870817    0.081880235
               Weighted Average Months to Maturity Original
>                       344            340    341.2496346
               Weighted Average Months to Maturity Prior
>                       340            335    336.5434858
               Weighted Average Months to Maturity Current
>                       338            333    334.5438952
               Weighted Avg Remaining Amortization Term Original
>               345.1975174    348.1456083    347.2245992
               Weighted Avg Remaining Amortization Term Prior
>               341.7247372    343.1120601    342.6837975
               Weighted Avg Remaining Amortization Term Current
>               339.6787056    341.4494236     340.902663
               Weighted Average Seasoning Original
>                1.84278944     1.99128947    1.944896778
               Weighted Average Seasoning Prior
>                6.36515231     6.51432198    6.468273727
               Weighted Average Seasoning Current
>                7.36664987     7.51573854    7.469703084
Note:  Original information refers to deal issue.
                    Group 1
                    Group 2
WAC by Groups                                                             Tota
>l WAC
WARAT by Groups                                                           Tota
>l WARAT
Note: Dates correspond to distribution dates.
                                                            Page 13 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Collateral Report for August 26, 2002 Distribution
               Collateral Report
ARM CHARACTERISTICS
>           GROUP 2        GROUP 1        TOTAL
               Weighted Average Margin Original
               Weighted Average Margin Prior
               Weighted Average Margin Current
               Weighted Average Max Rate Original
               Weighted Average Max Rate Prior
               Weighted Average Max Rate Current
               Weighted Average Min Rate Original
               Weighted Average Min Rate Prior
               Weighted Average Min Rate Current
               Weighted Average Cap Up Original
               Weighted Average Cap Up Prior
               Weighted Average Cap Up Current
               Weighted Average Cap Down Original
               Weighted Average Cap Down Prior
               Weighted Average Cap Down Current
Note:  Original information refers to deal issue.
SERVICING FEES / ADVANCES
>           GROUP 2        GROUP 1        TOTAL
               Current Servicing Fees
>           2,686.54       6,073.17       8,759.71
               Delinquent Servicing Fees
>           10,948.69      24,461.86      35,410.55
               TOTAL SERVICING FEES
>           13,635.23      30,535.03      44,170.26
               Total Servicing Fees
>           13,635.23      30,535.03      44,170.26
               Compensating Interest
>           0.00           1,919.07       1,919.07
               Delinquent Servicing Fees
>           (10,948.69)    (24,461.86)    (35,410.55)
               COLLECTED SERVICING FEES
>           2,686.54       7,992.24       10,678.78
               Current PPIS
>           0.00           (1,919.07)     (1,919.07)
               Current Net PPIS
>           0.00           0.00           0.00
               Total Advanced Principal For Current Payment Date
>           43,019.72      80,346.46      123,366.18
               Total Advanced Interest For Current Payment Date
>           286,192.31     721,780.99     1,007,973.30
               TOTAL ADVANCES FOR CURRENT PERIOD
>           329,212.03     802,127.45     1,131,339.48
ADDITIONAL COLLATERAL INFORMATION
>           GROUP 2        GROUP 1        TOTAL
               Weighted Average Net Mortgage Rate
>           7.1957%        8.1249%        7.8381%
                                                            Page 14 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Delinquency Report for August 26, 2002 Distribution
               Delinquency Report  - Total
                                                            CURRENT      1 PA
>YMENT      2  PAYMTS      3+  PAYMTS     TOTAL
DELINQUENT                    Balance
> 2735858.97     1415266.76     2598093.75     6749219.48
                              % Balance
>0.014528824    0.007515798     0.01379722    0.035841842
                              # Loans
>         14              8             14             36
                              % # Loans
> 0.01417004    0.008097166     0.01417004    0.036437247
FORECLOSURE                   Balance                                     0
>          0              0       75684.44       75684.44
                              % Balance                                   0
>          0              0    0.000401923    0.000401923
                              # Loans                                     0
>          0              0              1              1
                              % # Loans                                   0
>          0              0    0.001012146    0.001012146
BANKRUPTCY                    Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
REO                           Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
TOTAL                         Balance                                     0
> 2735858.97     1415266.76     2673778.19     6824903.92
                              % Balance                                   0
>0.014528824    0.007515798    0.014199143    0.036243765
                              # Loans                                     0
>         14              8             15             37
                              % # Loans                                   0
> 0.01417004    0.008097166    0.015182186    0.037449393
Note:  Current = 0-30days, 1 Payment =31-60days, 2 Payments = 61-90days,3 Pay
>ments = 91+

>                                         6 Months Moving Average
1 or 2 Payments Delinquent                                               3 or
> More Payments Delinquent
Total Foreclosure                                                        Tota
>l Bankruptcy and REO
Note: Dates correspond to distribution dates.
                                                            Page 15 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Delinquency Report for August 26, 2002 Distribution
               Delinquency Report  -  Group 1 Group
                                                            CURRENT      1 PA
>YMENT      2  PAYMTS      3+  PAYMTS     TOTAL
DELINQUENT                    Balance
> 1972076.75     1415266.76     1961844.85     5349188.36
                              % Balance
>0.015151083     0.01087322    0.015072474    0.041096777
                              # Loans
>         12              8             12             32
                              % # Loans
>0.014184397    0.009456265    0.014184397    0.037825059
FORECLOSURE                   Balance                                     0
>          0              0       75684.44       75684.44
                              % Balance                                   0
>          0              0    0.000581469    0.000581469
                              # Loans                                     0
>          0              0              1              1
                              % # Loans                                   0
>          0              0    0.001182033    0.001182033
BANKRUPTCY                    Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
REO                           Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
TOTAL                         Balance                                     0
> 1972076.75     1415266.76     2037529.29      5424872.8
                              % Balance                                   0
>0.015151083     0.01087322    0.015653942    0.041678246
                              # Loans                                     0
>         12              8             13             33
                              % # Loans                                   0
>0.014184397    0.009456265     0.01536643    0.039007092
Note:  Current = 0-30days, 1 Payment =31-60days, 2 Payments = 61-90days,3+Pay
>ments = 91+

>                                         6 Months Moving Average
1 or 2 Payments Delinquent                                               3 or
> More Payments Delinquent
Total Foreclosure                                                        Tota
>l Bankruptcy and REO
Note: Dates correspond to distribution dates.
                                                            Page 16 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Delinquency Report for August 26, 2002 Distribution
               Delinquency Report  -  Group 2 Group
                                                            CURRENT      1 PA
>YMENT      2  PAYMTS      3+  PAYMTS     TOTAL
DELINQUENT                    Balance
>  763782.22              0       636248.9     1400031.12
                              % Balance
> 0.01313586              0    0.010942486    0.024078346
                              # Loans
>          2              0              2              4
                              % # Loans
>0.014084507              0    0.014084507    0.028169014
FORECLOSURE                   Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
BANKRUPTCY                    Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
REO                           Balance                                     0
>          0              0              0              0
                              % Balance                                   0
>          0              0              0              0
                              # Loans                                     0
>          0              0              0              0
                              % # Loans                                   0
>          0              0              0              0
TOTAL                         Balance                                     0
>  763782.22              0       636248.9     1400031.12
                              % Balance                                   0
> 0.01313586              0    0.010942486    0.024078346
                              # Loans                                     0
>          2              0              2              4
                              % # Loans                                   0
>0.014084507              0    0.014084507    0.028169014
Note:  Current = 0-30days, 1 Payment =31-60days, 2 Payments = 61-90days,3+Pay
>ments = 91+

>                                         6 Months Moving Average
1 or 2 Payments Delinquent                                               3 or
> More Payments Delinquent
Total Foreclosure                                                        Tota
>l Bankruptcy and REO
Note: Dates correspond to distribution dates.
                                                            Page 17 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               REO Report for August 26, 2002 Distribution
              REO Report  -  Mortgage Loans that Become REO During Current Dis
>tribution
SUMMARY                                                         LOAN GROUP
Total Loan Count =   0                                           Loan Group 1
>=  Group 1 Group;   REO Book Value  =  000.00
Total Original Principal Balance =   000.00                      Loan Group 2
>  =    Group 2 Group;   REO Book Value  =  000.00
Total Current Balance =   000.00
REO Book Value =   000.00
REO Book Value reported corresponds to total REO loans, including loans that be
>come REO during current distribution.
Loan Number                   Original       Stated                        Curr
>ent        State &
&                             Principal      Principal      Paid to        Note
>           LTV at         Original       Origination
Loan Group                    Balance        Balance        Date           Rate
>           Origination    Term           Date
SPACE INTENTIONALLY LEFT BLANK
                                                            Page 18 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Prepayment Report for August 26, 2002 Distribution
               Prepayment Report  -  Voluntary Prepayments
VOLUNTARY PREPAYMENTS
>           GROUP 2        GROUP 1        TOTAL
               Current
               Number of Paid in Full Loans
>                         0              4              4
               Number of Repurchased Loans
>                         0              0              0
               Total Number of Loans Prepaid in Full
>                         0              4              4
               Paid in Full Balance
>                         0      527072.06      527072.06
               Repurchased Loans Balance
>                         0              0              0
               Curtailments Amount
>                 237336.38        74984.8      312321.18
               Total Prepayment Amount
>                 237336.38      602056.86      839393.24
               Cumulative
               Number of Paid in Full Loans
>                        10             41             51
               Number of Repurchased Loans
>                         0              4              4
               Total Number of Loans Prepaid in Full
>                        10             45             55
               Paid in Full Balance
>                3323246.24     6394716.92     9717963.16
               Repurchased Loans Balance
>                         0      617628.32      617628.32
               Curtailments Amount
>                 324625.41         8035.3      332660.71
               Total Prepayment Amount
>                3647871.65     7020380.54    10668252.19
SPACE INTENTIONALLY LEFT BLANK
Total Prepayments by Groups  (in thousands of dollars)                     Tota
>l Prepayments (in thousands of dollars)
                                                            Page 19 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Prepayment Report for August 26, 2002 Distribution
               Prepayment Report  -  Voluntary Prepayments
VOLUNTARY PREPAYMENT RATES
>           GROUP 2        GROUP 1        TOTAL
               SMM
>               0.004065221    0.004604189     0.00443783
               3 Months Avg SMM
>               0.007182385    0.010484437    0.009469374
               12 Months Avg SMM
               Avg SMM Since Cut-off
>               0.008639623     0.00765018    0.007956139
               CPR
>               0.047706581     0.05387242    0.051973167
               3 Months Avg CPR
>               0.082864113    0.118805965    0.107897214
               12 Months Avg CPR
               Avg CPR Since Cut-off
>               0.098888185     0.08803632    0.091404698
               PSA
>               3.238010631    3.583973825     3.47893123
               3 Months Avg  PSA Approximation
>               6.507569781    9.120339007    8.340757533
               12 Months Avg PSA Approximation
               Avg PSA Since Cut-off Approximation
>               11.10676976    9.593129567    10.05281462
                    Group 1
                    Group 2
CPR by Groups                                                              Tota
>l CPR
PSA by Groups                                                              Tota
>l PSA
                                                            Page 20 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Prepayment Report for August 26, 2002 Distribution
               Prepayment Report  -  Voluntary Prepayments
                    Group 1
                    Group 2
CPR Avg since Cut-Off by Groups                                            Tota
>l CPR Avg since Cut-Off
PSA Avg since Cut-Off  by Groups                                           Tota
>l PSA Avg since Cut-Off
PREPAYMENT CALCULATION METHODOLOGY
               Single Monthly Mortality (SMM):    (Voluntary partial and full p
>repayments + Repurchases)/(Beg Principal Balance - Sched Principal)
               Conditional Prepayment Rate (CPR):    1-((1-SMM)^12)
               PSA Standard Prepayment Model:    CPR/(0.02*min(30,WAS))
              Average SMM over period between nth month and mth month (AvgSMMn
>,m):    [(1-SMMn) * (1-SMMn+1) *.*(1-SMMm)]^(1/months in period n,m)
               Average CPR over period between the nth month and mth month (Avg
>CPRn,m):    1-((1-AvgSMMn,m)^12)
               Average PSA Approximation over period between the nth month and
>mth month:    AvgCPRn,m/(0.02*Avg WASn,m))
               Average WASn,m:    (min(30,WASn)+min(30,WASn+1)+.+min(30,WASm)
>/(number of months in the period n,m)
               Weighted Average Seasoning (WAS)
              Note:  Prepayment rates are calculated since deal issue date and
> include partial and full voluntary prepayments and repurchases.
                          Dates correspond to distribution dates.
                                                            Page 21 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Prepayment Detail Report for August 26, 2002 Distribution
               Prepayment Detail Report  -  Loans Prepaid in Full During Curren
>t Distribution
SUMMARY
>           LOAN GROUP
Total Loan Count =   4
>           Loan Group 1    =    Group 1 Group
Total Original Principal Balance =   529,005.00
>           Loan Group 2    =    Group 2 Group
Total Prepayment Amount =   527,072.06
Loan Number                                  Original
>           Current        State &        Type Prepayment
&                             Loan           Principal      Prepayment    Prep
>ayment     Note           LTV at         &              Origination
Loan Group                    Status         Balance        Amount        Date
>           Rate           Origination    Original Term  Date
1100343022  1                                         135755      135276.35
>      37455          0.095MA  -  95.00%  Paid Off  -  36          37265
1100345594  1                                         108000      107648.55
>      37448        0.09125NJ  -  80.00%  Paid Off  -  36          37271
1109004452  1                                         161950      161395.07
>      37467        0.08875CO  -  88.02%  Paid Off  -  36          37256
2500013566  1                                         123300      122752.09
>      37438          0.085FL  -  90.00%  Paid Off  -  36          37256
                                                                         Page
> 22 of 28                                             (c) COPYRIGHT 2002 Deutsc
>he Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Realized Loss Report for August 26, 2002 Distribution
               Realized Loss Report  -  Collateral
COLLATERAL REALIZED LOSSES
>           GROUP 2        GROUP 1        TOTAL
               Current
               Number of Loans Liquidated
>                         0              0              0
               Collateral Realized Loss/(Gain) Amount
>                         0              0              0
               Net Liquidation Proceeds
>                         0              0              0
               Cumulative
               Number of Loans Liquidated
>                         0              0              0
               Collateral Realized Loss/(Gain) Amount
>                         0              0              0
               Net Liquidation Proceeds
>                         0              0              0
              Note: Collateral realized losses may include adjustments to loan
>s liquidated in prior periods.
SPACE INTENTIONALLY LEFT BLANK
                    Group 1
>                                            3 Months Moving Average
                    Group 2
Collateral Loss Severity Approximation  by Groups                         Coll
>ateral Loss Severity Approximation
                                                            Page 23 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Realized Loss Report for August 26, 2002 Distribution
               Realized Loss Report  -  Collateral
DEFAULT SPEEDS
>           GROUP 2        GROUP 1        TOTAL
               MDR
>                         0              0              0
               3 Months Avg MDR
>                         0              0              0
               12 Months Avg MDR
               Avg MDR Since Cut-off
>                         0              0              0
               CDR
>                         0              0              0
               3 Months Avg CDR
>                         0              0              0
               12 Months Avg CDR
               Avg CDR Since Cut-off
>                         0              0              0
               SDA
>                         0              0              0
               3 Months Avg  SDA Approximation
>                         0              0              0
               12 Months Avg SDA Approximation
               Avg SDA Since Cut-off Approximation
>                         0              0              0
               Loss Severity Approximation for Current Period
               3 Months Avg Loss Severity Approximation
               12 Months Avg Loss Severity Approximation
               Avg  Loss Severity Approximation Since Cut-off
                    Group 1
                    Group 2
CDR by Groups                                                             Tota
>l CDR
SDA by Groups                                                             Tota
>l SDA
                                                            Page 24 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Realized Loss Report for August 26, 2002 Distribution
               Realized Loss Report  -  Collateral
                    Group 1
                    Group 2
CDR Avg since Cut-Off by Groups                                            Tota
>l CDR Avg since Cut-Off
SDA Avg since Cut-Off  by Groups                                           Tota
>l SDA Avg since Cut-Off
COLLATERAL REALIZED LOSS  CALCULATION METHODOLOGY
               Monthly Default Rate (MDR):    (Beg Principal Balance of Liquida
>ted Loans)/(Total Beg Principal Balance)
               Conditional Default Rate (CDR):    1-((1-MDR)^12)
               SDA Standard Default Assumption:    CDR/IF(WAS<61,MIN(30,WAS)*0.
>02,MAX(0.03,MIN(30,WAS)*0.02-0.0095*(WAS-60)))
               Average MDR over period between nth month and mth month (AvgMDRn
>,m):    [(1-MDRn) * (1-MDRn+1) *.......*(1-MDRm)]^(1/months in period n,m)
               Average CDR over period between the nth month and mth month (Avg
>CDRn,m):    1-((1-AvgMDRn,m)^12)
               Average SDA Approximation over period between the nth month and
>mth month:
                        AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)*0.02,MAX
>(0.03,MIN(30,Avg WASn,m)*0.02-0.0095*(Avg WASn,m-60)))
               Average WASn,m:    (WASn + WASn+1 ++ WASm )/(number of months
> in the period n,m)
              Loss Severity Approximation for current period: sum(Realized Los
>s Amount)/sum(Beg Principal Balance of Liquidated Loans)
              Average Loss Severity Approximation over period between nth mont
>h and mth month: Avg(Loss Severityn,m)
               Note:  Default rates are calculated since deal issue date and in
>clude realized gains and additional realized losses and gains from priorperiod
>s.
                          Dates correspond to distribution dates.
                                                            Page 25 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Realized Loss Detail Report for August 26, 2002 Distribution
               Realized Loss Detail Report  -  Loans Liquidated During Current
>Distribution
SUMMARY
>           LOAN GROUP
Total Loan Count =   0
>           Loan Group 1    =    Group 1 Group
Total Original Principal Balance =   0.00
>           Loan Group 2    =    Group 2 Group
Total Prior Principal Balance =   0.00
Total Realized Loss Amount =   0.00
Total Net Liquidation Proceeds =   0.00
Loan Number                                  Original       Prior
>           Current        State &
&                             Loan           Principal      Principal      Real
>ized       Note           LTV at         Original       Origination
Loan Group                    Status         Balance        Balance        Loss
>/(Gain)    Rate           Origination    Term           Date
SPACE INTENTIONALLY LEFT BLANK
                                                                           Page
> 26 of 28                                             (c) COPYRIGHT 2002 Deutsc
>he Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Triggers, Adj. Rate Cert. and Miscellaneous Report for August 26
>, 2002 Distribution
               Triggers, Adj. Rate Cert. and Miscellaneous Report
TRIGGER EVENTS
>           GROUP 2        GROUP 1        TOTAL
               Optional Termination Date Reached
>           No             No             No
               After the 36th Distribution
>           No             No             No
               Stepdown date occurred
>           No             No             No
               Trigger Event in Effect
>           No             No             No
ADJUSTABLE RATE CERTIFICATE INFORMATION
>           GROUP 2        GROUP 1        TOTAL
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION
>           GROUP 2        GROUP 1        TOTAL
               NET WAC SHORTFALL RESERVE FUND
               Original Net WAC Shortfall Reserve Fund Balance
>                                         210,000.00
               Net WAC Shortfall Reserve Fund Beginning Balance
>                                         167,834.58
               Net WAC Shortfall
>                                         6,617.77
               Net WAC Shortfall Reserve Fund Ending Balance
>                                         161,216.81
                                                            Page 27 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank
               IMPAC Secured Assets Corp.   2002-S1
               Mortgage Pass-Through Certificates
               Additional Certificate Report for August 26, 2002 Distribution
               Additional Certificate Report
               CLASS
>                                         Net PPIS & Other Int. Shortfalls
               A-I-1
>                                         0.00
               A-I-2
>                                         0.00
               A-I-3
>                                         0.00
               A-I-4
>                                         0.00
               A-I-5
>                                         0.00
               A-I-6
>                                         0.00
               A-II
>                                         0.00
               A-IO
>                                         0.00
               M-1
>                                         0.00
               M-2
>                                         0.00
               B
>                                         0.00
                                                            Page 28 of 28
>                                         (c) COPYRIGHT 2002 Deutsche Bank