Terrestar SC 13D/A / HARBINGER CAPITAL PARTNERS MASTER FUND I ownership change

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 24)*

TERRESTAR CORP

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

881451108

(CUSIP Number)

Philip Falcone

450 Park Avenue, 30th Floor

New York, NY 10022

(212) 339-5100

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

November 17, 2010

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this statement because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. [ ]

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

	SCHEDULE 13D
CUSIP No.: 881451108			Page 2 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD.
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) WC
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Cayman Islands
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 37,049,174
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 37,049,174
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 37,049,174
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 21.6%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 3 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 37,049,174
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 37,049,174
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 37,049,174
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 21.6%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 4 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P.
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) WC
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 10,327,857
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 10,327,857
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 10,327,857
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 7.0%
14.	Type of Reporting Person: PN

	SCHEDULE 13D
CUSIP No.: 881451108			Page 5 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 10,327,857
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 10,327,857
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 10,327,857
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 7.0%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 6 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). CREDIT DISTRESSED BLUE LINE MASTER FUND, LTD.
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) WC
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Cayman Islands
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 9,202,222
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 9,202,222
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 9,202,222
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 6.2%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 7 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS II LP
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 9,202,222
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 9,202,222
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 9,202,222
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 6.2%
14.	Type of Reporting Person: PN

	SCHEDULE 13D
CUSIP No.: 881451108			Page 8 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER CAPITAL PARTNERS II GP LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 9,202,222
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 9,202,222
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 9,202,222
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 6.2%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 9 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). HARBINGER HOLDINGS, LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 47,377,031
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 47,377,031
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 47,377,031
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 26.2%
14.	Type of Reporting Person: CO

	SCHEDULE 13D
CUSIP No.: 881451108			Page 10 of 17 Pages

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). PHILIP FALCONE
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Source of Funds (See Instructions) AF
5.	Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [ ]
6.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person with		7.	Sole Voting Power 0
		8.	Shared Voting Power 56,579,253
		9.	Sole Dispositive Power 0
		10.	Shared Dispositive Power 56,579,253
11.	Aggregate Amount Beneficially Owned by Each Reporting Person 56,579,253
12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ]
13.	Percent of Class Represented by Amount in Row (11) 29.8%
14.	Type of Reporting Person: IN

	SCHEDULE 13D
CUSIP No.: 881451108			Page 11 of 17 Pages

Item 1. Security and Issuer

Item 1 of the Schedule 13D is hereby amended and restated in its entirety as follows:

This Amendment No. 24 to Schedule 13D is being filed by the undersigned to amend the Schedule 13D filed by the Reporting Persons on February 21, 2007, as amended by Amendments Nos. 1-23, the last of which was filed on November 12, 2010 (as amended, the “Schedule 13D”), with respect to the common stock, par value $0.01 per share (the “Shares”), of TerreStar Corp (“TerreStar”), whose principal executive offices are located at 12010 S unset Hills Road, 6th Floor, Reston, VA 20190.

Item 2. Identity and Background

No material change.

Item 3. Source and Amount of Funds or Other Consideration

Item 3 of the Schedule 13D is hereby amended and restated in its entirety as follows:

See Item 5 for a list of the Shares beneficially owned by each Reporting Person as of the dates identified in Item 5.

No borrowed funds were used to purchase the Shares or derivative secutiries, other than any borrowed funds used for working capital purposes in the ordinary course of business. A total of approximately $481,596,210 was paid to acquire the derivative securities reported on Exhibit B.

Item 4. Purpose of Transaction

No material change.

Item 5. Interest in Securities of the Issuer

Item 5 of the Schedule 13D is hereby amended and restated in its entirety as follows:

(a, b) As of November 18, 2010:

Reporting Person	Number of Shares Beneficially Owned*	Percentage of Outstanding Shares	Number of Outstanding Shares**
Master Fund	37,049,174	21.6%	171,833,609
Harbinger LLC	37,049,174	21.6%	171,833,609
Special Fund	10,327,857	7.0%	148,586,154
HCPSS	10,327,857	7.0%	148,586,154
Blue Line Fund	9,202,222	6.2%	148,668,256
HCP II	9,202,222	6.2%	148,668,256
HCP II GP	9,202,222	6.2%	148,668,256
Harbinger Holdings	47,377,031	26.2%	180,953,729
Mr. Falcone	56,579,253	29.8%	190,155,951

* The beneficial ownership for which figures are provided in this column is the shared, not sole, power to vote or to direct the vote of the Shares, and the shared, not sole, power to dispose or to direct the disposition of the Shares.

** Each figure is based on 139,466,034 Shares outstanding (as of August 2, 2010, according to the Issuer’s most recent Form 10-Q, filed on August 6, 2010), adjusted for derivative securities held by the Reporting Person.

	SCHEDULE 13D
CUSIP No.: 881451108			Page 12 of 17 Pages

(c) The trading dates, number of Shares acquired and disposed of, and the price per share for all transactions in the Shares by the Reporting Persons, separate from the transactions reported on the prior Schedule 13D, are set forth in Exhibit B. These transactions were all effected in the open market through a broker.

(d) This Item 5(d) is not applicable.

(e) This Item 5(e) is not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

This Item 6 is not applicable.

Item 7. Material to be Filed as Exhibits.

Exhibit A: Joint Filing Agreement

Exhibit B: Schedule of Transactions

	SCHEDULE 13D
CUSIP No.: 881451108			Page 13 of 17 Pages

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD.

By: HARBINGER CAPITAL PARTNERS LLC

By: HARBINGER HOLDINGS, LLC, Manager

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS LLC

By: HARBINGER HOLDINGS, LLC, Manager

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS SPECIAL

SITUATIONS FUND, L.P.

By: HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC

By: HARBINGER HOLDINGS, LLC, Managing Member

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS SPECIAL

SITUATIONS GP, LLC

By: HARBINGER HOLDINGS, LLC, Managing Member

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

	SCHEDULE 13D
CUSIP No.: 881451108			Page 14 of 17 Pages

CREDIT DISTRESSED BLUE LINE MASTER FUND, LTD.

By: HARBINGER CAPITAL PARTNERS II LP

By: HARBINGER CAPITAL PARTNERS II GP LLC, General Partner

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS II LP

By: HARBINGER CAPITAL PARTNERS II GP LLC, General Partner

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS II GP LLC

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER HOLDINGS, LLC

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

/s/ Philip Falcone

Philip Falcone

November 19, 2010

Attention: Intentional misstatements or omissions of fact constitute federal violations (see 18 U.S.C. 1001).

	SCHEDULE 13D
CUSIP No.: 881451108			Page 15 of 17 Pages EXHIBIT A

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13D with respect to the common stock, par value $0.01 per share of TerreStar Corp, dated as of November 19, 2010 is, and any amendments thereto (including amendments on Schedule 13G) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934.

HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD.

By: HARBINGER CAPITAL PARTNERS LLC

By: HARBINGER HOLDINGS, LLC, Manager

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS LLC

By: HARBINGER HOLDINGS, LLC, Manager

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS SPECIAL

SITUATIONS FUND, L.P.

By: HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC

By: HARBINGER HOLDINGS, LLC, Managing Member

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC

By: HARBINGER HOLDINGS, LLC, Managing Member

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

	SCHEDULE 13D
CUSIP No.: 881451108			Page 16 of 17 Pages

CREDIT DISTRESSED BLUE LINE MASTER FUND, LTD.

By: HARBINGER CAPITAL PARTNERS II LP

By: HARBINGER CAPITAL PARTNERS II GP LLC, General Partner

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS II LP

By: HARBINGER CAPITAL PARTNERS II GP LLC, General Partner

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER CAPITAL PARTNERS II GP LLC

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

HARBINGER HOLDINGS, LLC

By: /s/ Philip Falcone

Name: Philip Falcone

Title: Managing Member

/s/ Philip Falcone

Philip Falcone

November 19, 2010

	SCHEDULE 13D
CUSIP No.: 881451108			Page 17 of 17 Pages EXHIBIT B

SCHEDULE OF TRANSACTIONS

Master Fund

Date	Shares Acquired or Disposed of	Price per Share
November 17, 2010	(478,836)	0.1640
November 17, 2010	(1,810,684)	0.1640
November 17, 2010	(4,895,514)	0.1500

Special Fund

Date	Shares Acquired or Disposed of	Price per Share
November 17, 2010	(3,222,548)	0.1500

Blue Line Fund

Date	6.5% Senior Exchangeable PIK Notes* Acquired or Disposed of	Price per Note
November 17, 2010	2,000,000	80.0
November 18, 2010	3,921,905	82.0

* These 6.5% Senior Exchangeable PIK Notes are exchangeable for Shares at a conversion rate of 5.5741 notes per Share.

Terrestar Inactive SC 13D/ATERRESTAR / HARBINGER CAPITAL PARTNERS MASTER FUND I ownership change