OPS 2439
| Launched | 9 March 1975 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 7687 | 
| COSPAR ID | 1975-017A | 
| Observing | 
OPS 2439
| Launched | 9 March 1975 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 7687 | 
| COSPAR ID | 1975-017A | 
| Observing |