OPS 3559
| Launched | 15 June 1967 |
| Flight ended | 19 July 1967 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2850 |
| COSPAR ID | 1967-062A |
| Observing |
Launched alongside
OPS 1873OPS 3559
| Launched | 15 June 1967 |
| Flight ended | 19 July 1967 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2850 |
| COSPAR ID | 1967-062A |
| Observing |
Launched alongside
OPS 1873