Comparison of the OTS satellites.
OTS = Orbital Test Satellite.
The main satellite comparison index
| Satellite: | OTS 1 | OTS 2 |
| . | .(note 1) | . |
| Launch | 13 / 9 / 1977 | 11 / 5 / 1978 |
| Launch Location | Cape Canveral | Cape Canveral |
| Launch Mass (kg) | 865 | 865 |
| Expected Lifetime (years) | 3 | 3 |
| Power Consumption (watts) | 750 | 750 |
| Transponder Capacity at launch | 6 | 6 |
| TWTA Output (watts) | 20 | 20 |
| Transponder Bandwidth (MHz) | 2
@5MHz 2 @40MHz 2@120MHz |
2
@5MHz 2 @40MHz 2@120MHz |
| Channels (MHz) | ? | ? |
| Current Location | destroyed at launch | junk
orbit (note 2) |
| Decommission Date | 13 / 9 / 1977 | 1 / 1991 |
| Manufacturer / Spacecraft type | British Aerospace OTS | British Aerospace OTS |
| Stabilisation type | 3-axis | 3-axis |
Notes
1 Satellite lost due to launch failure of Thor Delta 134
2 Primary mission ended 1984, then used for another 6 years to test experimental attitude control techniques. Moved to junk orbit January 1991
One of the OTS birds © ESA
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