Launch data:
| Designation | 08838 / 76042A |
| Launch date | 13 May 1976 |
| Launch site | CC, LC-36A |
| Launch vehicle | Atlas-SLV3D Centaur-D1AR (AC-38) |
| Mission | Communications |
| Geostationary orbit | 128°W |
Comstar 1 |
USA |
Launch data:
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| Prime contractor | Hughes |
| Platform | HS-351 |
| Mass at launch | 1516 kg |
| Mass in orbit | 911 kg |
| Dimension | 2.38 m diameter x 6.34 m height |
| Stabilization | Spin stabilized (56 rpm) |
| DC power | BOL:570 W |
| Design lifetime | 10 years |
| Main transponders | 24 |
| Backup transponders | |
| Power | Horizontal: 5 W (TWTA) Vertical: 5.5 W (TWTA) |
| Bandwidth | 36 MHz |
| Coverage | CONUS |
| EIRP max | 33 dBW |
| Polarization | linear H/V |
| Out of service | yes |
| Ref.: #15 - update: 10.07.08 | Home |