Mission
Communications · Direct-GEO
The U.S. Navy began replacing and upgrading its ultra-high frequency (UHF) satellite communications network during the 1990s with a constellation of customized satellites built by Hughes Space and Communications Company. Known as the UFO (Ultra High Frequency Follow On) series, these HS-601 model…
What it put in orbit
| Object | Type | Orbit | Globe |
|---|---|---|---|
| UFO 9 (USA 140) 1998-058A | Payload | 36344 × 36425 km · 11.4° | Globe |
| ATLAS 2A CENTAUR R/B 1998-058B | Rocket body | 275 × 17543 km · 27.0° | Globe |
COSPAR ID 1998-058. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).