Attachment LETTER

LETTER

LETTER submitted by IB,FCC

LETTER

2006-05-11

This document pretains to SAT-MOD-20051020-00204 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2005102000204_499682

May 11, 2006 Joseph A. Godles Goldberg Godles Wiener & Wright 1229 19" Street, NW Washington, DC 20036—2413 Re: PanAmSat Licensee Corp., Application for License Modification or, in the Alternative, Request for Special Temporary Authority IBRS File Nos.SAT—MOD—20051020—00204; SAT—STA—20051020—00205 Dear Mr. Godles: On October 20, 2005, PanAmSat Licensce Corp. (PanAmSat)filedapplications to modify the license of the SBS—6 spacecrafl by extending the license term by five years or, in the alternative, to request special temporary authority (STA) to operate the SBS—6 spacecraftfor a period of 180 days afte the license ofthe SBS—6 spacecraft expires. The current license term for the $BS—6 spacecraft expired on November 1, 2005. Both applications are currently pending before the Satellte Division. In orderto determine whether these extension requests serve the public interest, we require additional information about the operations and post—mission disposal plans of the SBS—6 spacecraft. Specifically, we request PanAmSat to supply within 30 days ofthe date ofthis letter the following information: (1) the intended disposal altitude that will be used at end of life for the SBS—6 spacceraty (2) the amount offuel,in kilograms, thatisintended to be reserved to accomplish the intended disposal altitude, as well as the methodology used to derive that quantity, including the methods used to determine and address fuel gauging uncertainty; (3) the amount of fuel,in kilograms, that is currently estimated to be available to the SBS—6 spacecraft; (4) whether the SBS—6 spacecraft has experienced any in—orbit anomalies in comnection with is electrical or propulsion systems that could cause loss of control of the spacceraft and prevent post—mission disposal;

(5) whether stored energy will be removed at the spacecraft‘s end of life, by depleting residual fuel and leaving all fuel line valves open, venting any pressurized system, leaving all bateries in a permanent discharge state, and removing any remaining source of stored energy, or through other equivalent procedures. In addition, we seck confirmation whether the SBS—6 spacecraft will be maintained within +0.05 degrees ofit assigned orbitallongitude in the east—west direction during the remainder of ts operational life, as required by Section 25.210() of the Commission‘s rules, 47 C.F.R. § 25.210(). In preparing your response to thisleter, you may wish to consult the Public Notice of October 13, 2005, entitled "Disclosure ofOrbital Debris Mitigation Plans, Including Amendment of Pending Applications."" Please do not hesitate to contact Karl Kensinger (418—0773) or Stephen Duall (418—1103) ofmy staffif you have any questions regarding this ltter. Sincerely, Ker— Robert G. Nelson Chief, Satelite Division ‘ Publ Notic, DA 0§—2698, SPB Report No. SPB—112 (October 13, 2008).


Document Created: 2006-05-11 10:27:57
Document Modified: 2006-05-11 10:27:57
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