DELTA 1 R/B(2)
| Launched | 19 April 1973 |
| Flight ended | 27 May 1990 |
| Status | Decayed |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 13939 |
| COSPAR ID | 1973-023C |
| Observing |
DELTA 1 R/B(2)
| Launched | 19 April 1973 |
| Flight ended | 27 May 1990 |
| Status | Decayed |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 13939 |
| COSPAR ID | 1973-023C |
| Observing |