Attachment response.pdf

response.pdf

SUBMISSION FOR THE RECORD submitted by Boeing

response to informal information request

2003-12-22

This document pretains to SAT-MOD-20030711-00128 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2003071100128_372232



















                         BOEING PROPRIETARY

                          NA Gem
Spacecraft Area (projected along Z axis onto the separation plane)




                                              North Solar Array
                                                    45 m2




                                                                                        27 m



      22m Astro Mesh                                                  Bus/Payload
      Reflector 397 m2                                                 Module and
                                                                     reflector cradle
                                                                          10.5 m2




                                              South Solar Array
                                                   45 m2




                   31 m



                         BOEING PROPRIETARY


                                 BOEING PROPRIETARY



                               Analemma plots




North American GEM CDR, 7/03
                                 BOEING PROPRIETARY   Mission: 19


                                                                 BOEING PROPRIETARY



                                                On-station Inclination
                                            Inclination vs. Mission Life
                                                                                        For launch in January 2006
                    6.5


                     6
Inclination (deg)




                    5.5                                                                                EOT inclination: 6.30°
                                                                                                       BOS inclination: 6.00°
                     5                                                                                 EOL inclination: 4.15°
                                                                                                       plot shows inclination through 15 years
                    4.5


                     4


                    3.5
                     Jan-06   Jan-08   Jan-10   Jan-12   Jan-14    Jan-16   Jan-18   Jan-20   Jan-22
                                                          Date


                          • BOS is assumed to be at L+6 months.
                          • Inclination will be < 6.0° after In Orbit Test and check-outs

North American GEM CDR, 7/03
                                                                 BOEING PROPRIETARY                                                    Mission: 17


                                       BOEING PROPRIETARY



                               On-station Inclination/RAAN



     For launch in January 2006                             RAAN vs Inclination
     Sample injection                                              907
                                                             120     6    60
     • At the end of Transfer Orbit:                                 5
                                                                     4
        RAAN = 324.0°                               150              3         30
        Inclination = 6.30°                                          2
                                                                     1
     • BOS Inclination = 6.00°                    180                                0

     • EOL Inclination = 4.15°
     • EOL RAAN = 13.5°                             210                        330


                                                             240         300
                                                                   270



North American GEM CDR, 7/03
                                       BOEING PROPRIETARY                                Mission: 18



Document Created: 2004-02-27 17:09:39
Document Modified: 2004-02-27 17:09:39

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