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 8 (USA 138) 1998-016A | Payload | 35769 × 35818 km · 11.3° | Globe |
| ATLAS 2 CENTAUR R/B 1998-016B | Rocket body | re-entered 2007-10-24 |
COSPAR ID 1998-016. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).