Attachment letter

letter

LETTER submitted by Skynet Satellite Corporation

letter

2008-03-25

This document pretains to SAT-MOD-20060306-00024 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2006030600024_697397

" j I George F. Wazeter Director, Regulatory Affairs March 25, 2008 Marlene H. Dortch, Secretary Federal Communications Commission Office of the Secretary 445 12th Street, SW Washington, DC 20554 RE: Notice of Completion of De-orbit Maneuvers for Telstar 11, Call Sign S2670 Dear Ms. Dortch; Skynet Satellte Corporation (SSC)!, licensee of the Telstar 11 satellite, hereby notifies the Commission that de-orbit maneuvers for the satellite were completed on March 20, 2008. The final orbital parameters are: (i) Perigee = 379 km above the geostationary are, (ii) Apogee = 580km above the geostationary arc. All systems on board the satellte have been turned off and the batteries left in a state of permanent discharge. Based on advice from Astrium, the satellite manufacturer, it was not safe to completely vent all of the fuel and oxidizer because the satellte was not designed for complete purging of the fuel system. To the extent possible, SSC expended the maximum amount of fuel to achieve a safe de-orbit altitude. SSC estimates that less than 1 Kg of fuel and oxidizer remains on board the satellte. The valves have been closed and, with no i Skynet Satellte Corporation is a U.S. subsidiary of Telesat Canada. 500 Hills Drive, Bedminster, NJ 07921 TeL.: 908-470-2350 Fax: 908-470-2453

power available to operate them or to operate the heaters on the spacecraft, the fuel and oxidizer have solidified and there is no danger of unanticipated discharge of fuel or propellant. Please contact me at 908-470-2350 if you require additional information. Thank you, ~/p:d,./-.- GeorgeFWazeter ~~ Copies to Robert Nelson Andrea Kelly Karl Kensinger


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