1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ------------------------ FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 2,1998 ------------------------ ORBITAL SCIENCES CORPORATION DELAWARE 0-18287 06-1209561 (State of incorporation) (Commission File Number) (I.R.S. Employer I.D. No.) 21700 ATLANTIC BOULEVARD DULLES, VIRGINIA 20166 (703) 406-5000 (Address and telephone number of principal executive offices) 2 ITEM 5. OTHER EVENTS On July 2, 1998, ORBCOMM Corporation announced that it has elected to postpone its proposed initial public offering of common stock. ORBCOMM Corp. was organized for the sole purpose of investing in and acting as a general partner of ORBCOMM Global, L.P. ("ORBCOMM"). Orbital Sciences Corporation ("Orbital"), through its subsidiary Orbital Communication Corporation, and Teleglobe Mobile Partners, an affiliate of Teleglobe Inc., the existing fifty percent partners in ORBCOMM, each has reaffirmed its commitment to continue to develop the ORBCOMM satellite-based global data messaging business. In addition, the partners have agreed to provide funding while they consider options for future financing at ORBCOMM. Orbital expects to fund its share of ORBCOMM's capital needs through existing resources, including cash from operations and working capital. -1- 3 SIGNATURES 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 thereunto duly authorized. ORBITAL SCIENCES CORPORATION Date: July 2, 1998 By: /s/ Jeffrey V. Pirone ----------------------- Jeffrey V. Pirone Executive Vice President and Chief Financial Officer -2-