TD-1A
| Launched | 11 March 1972 |
| Flight ended | 8 January 1980 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Research Organization |
| NORAD ID | 5879 |
| COSPAR ID | 1972-014A |
| Observing |
TD-1A
| Launched | 11 March 1972 |
| Flight ended | 8 January 1980 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Research Organization |
| NORAD ID | 5879 |
| COSPAR ID | 1972-014A |
| Observing |