This is the PALAPA-B Satellite Program I was the Senior Designer for the Output Multiplexer details, Assemblies and Sub-Assemblies and Installation.
``PALAPA`` which connotes Indonesian National Unity, is a fitting name for this Satellite that continues to bring continued quality and efficiency for Television, Telephone, Facsimile and Data Transmission Services used by Indonesia. Services are also provided to Papua, New Guinea and fellow members of the Association of Southeast Asian Nations (ASEAN) -- Brunei, Malaysia, the Phillipines, Singapore and Thailand.
The PALAPA-B Satellite has 24 transponders each capable of carrying 1000 2 way Voice circuits or a Color Television Transmission. The first PALAPA-B1 launch was June 1983 aboard the Space Shuttle Challenger. The second PALAPA-B2 launch was Feb 1984 aboard the Space Shuttle Challenger and the third PALAPA-B3 was launched aboard a Delta Rocket Mar 1987 and the fourth PALAPA-B4 was launched May 1992 aboard a Delta II Rocket.
The PALAPA-B Satellite is stabilized by spinning at 50 rpm. Both the Communications Antenna and Electronic Shelf are despun with respect to Earth and achieve a pointing accuracy better than .05 degrees.