COS-B
| Launched | 8 August 1975 |
| Flight ended | 17 January 1986 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Agency |
| NORAD ID | 8062 |
| COSPAR ID | 1975-072A |
| Observing |
Launched alongside
DELTA 1 R/BCOS-B
| Launched | 8 August 1975 |
| Flight ended | 17 January 1986 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Agency |
| NORAD ID | 8062 |
| COSPAR ID | 1975-072A |
| Observing |
Launched alongside
DELTA 1 R/B