Spacecraft information: USA 278
| Launched | 23 September 2017 |
| Flight ended | – |
| Status | Operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 42941 |
| COSPAR ID | 2017-056A |
| Observing |
Spacecraft information: USA 278
| Launched | 23 September 2017 |
| Flight ended | – |
| Status | Operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 42941 |
| COSPAR ID | 2017-056A |
| Observing |