USA 173
| Launched | 1 December 2003 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 28095 |
| COSPAR ID | 2003-054A |
| Observing |
USA 173
| Launched | 1 December 2003 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 28095 |
| COSPAR ID | 2003-054A |
| Observing |