Part of the Palapa program
Palapa B satellites were four times as powerful and twice the size of their predecessors, the Palapa A series. While the A series was designed for domestic/regional communications within Indonesia, the new system also served the Phillipines, Thailand, Malaysia and Singapore. Palapa B2 was originally placed into a useless orbit due to malfunctions of its PAM-D upper stage. The Indonesian government claimed $75 million insurance and ordered a replacement (B2P), which was successfully orbited 3 years later. The original B2 was recovered by the STS-51A mission on November 12, 1984 under an arrangement between the satellite's insurers, NASA and Hughes. The satellite was then sold by the insurers to an intermediary company, refurbished, and then resold back to Indonesia following its launch in 1990.
Based on Hughes HS-376 design. Cylindrical structure. Spin stabilized. Hydrazine
propulsion system for attitude control, orbit maintenance. Body mounted solar cells
provide 1060 W BOL. Despun antenna platform.
Each carried 24 C-band transponders (+6 spares).
|Country of Origin ||Indonesia|
|Customer/User ||Perumtel, Satelindo|
|Size ||6.83 m high, 2.16 m diameter|
|Orbit ||All in GEO: B1: 118 deg E, B2P: 113 deg E, B2R: 108 deg E, B4: 118 deg E|
|Design Life ||8 years|
| Name || Int'l Desig. || Date || Site || Vehicle || Orbit || Mass(kg) |
| Palapa B1 || 1983-059C || 6/18/83 || ESMC || STS 7 || GEO || 1200 |
| Deployed by STS-7 6/18/83 |
| Palapa B2 || 1984-011D || 2/3/84 || ESMC || STS 41B || LEO || 1200 |
| Deployed from STS 41B 2/4/84; failed to reach proper orbit; recovered by STS-51A |
| Palapa B2P || 1987-029A || 3/20/87 || ESMC || Delta 3920 || GEO || 1200 |
| 113 deg W |
| Palapa B2R || 1990-034A || 4/13/90 || ESMC || Delta 6925-8 || GEO || 1200 |
| Refurbished Palapa B2 retrieved by STS-51A; 107.7 deg E |
| Palapa B4 || 1992-027A || 5/14/92 || ESMC || Delta 7925-8 || GEO || 1254 |
| 118 deg E |
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