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Hughes: HS-381 / HS-386
 Leasat (Syncom-4) [Hughes] |
 SDS-2 [NRO] |
| Satellite | Ordered | Date | Launcher | Weight (kg) | Remarks | ||
|---|---|---|---|---|---|---|---|
| Launch | BOL | ||||||
| HS-381 | |||||||
| Leasat 1 (Syncom-4 1) | 1978 | 08.11.1984 | Shuttle TU-882 | 3400 | 1388 | ||
| Leasat 2 (Syncom-4 2) | 1978 | 30.08.1984 | Shuttle TU-882 | 3400 | 1388 | ||
| Leasat 3 (Syncom-4 3) | 1978 | 12.04.1985 | r | Shuttle TU-882 | 3400 | 1388 | PKM failed, repaired later on orbit |
| Leasat 4 (Syncom-4 4) | 1978 | 27.08.1985 | Shuttle TU-882 | 3400 | 1388 | ||
| Leasat 5 (Syncom-4 5) | 1978 | 09.01.1990 | Shuttle TU-882 | 3400 | 1388 | ||
| HS-386 | |||||||
| Quasar 8 (SDS-2 1) | 08.08.1989 | Shuttle TU-882 | Molniya Orb. | ||||
| Quasar 9 (SDS-2 2) | 15.11.1990 | Shuttle TU-882 | GEO | ||||
| Quasar 10 (SDS-2 3) | 02.12.1992 | Shuttle TU-882 | Molniya Orb. | ||||
| Quasar 11 (SDS-2 4) | 03.07.1996 | Titan-4(05)A TU-882 | Molniya Orb. | ||||
| Quasar 12 (SDS-2 5) | 29.01.1998 | Atlas-2A | Molniya Orb. | ||||
| Quasar x (SDS-2 6) | not launched | donated to NASA | |||||
Further Hughes / Boeing satellite busses:
