Mission
Government/Top Secret · LEO
Last launch of an Atlas model using the original, innovative, balloon propellant tanks conceived in 1947. Third launch of new generation paired satellites used for tracking, characterisation, and intelligence on naval vessels and civilian shipping worldwide.
What it put in orbit
| Object | Type | Orbit | Globe |
|---|---|---|---|
| USA 181 2005-004A | Payload | 687 × 1522 km · 63.4° | Globe |
| ATLAS 3B CENTAUR R/B 2005-004B | Rocket body | 940 × 1254 km · 63.8° | Globe |
| USA 181 DEB 2005-004C | Debris | 684 × 1529 km · 63.4° | Globe |
COSPAR ID 2005-004. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).