// space science · 1991
REX
U.S. military ionospheric research satellite. REX was launched on June 29, 1991 aboard a Scout G-1 from Vandenberg. Latest status in GCAT: in orbit.
COSPAR 1991-045ANORAD 21527United States
Identity
- Name in GCAT
- REX
- Other names
- STP P89-1A:PN
- International designator
- 1991-045A
- NORAD catalog number
- 21527
- GCAT identifier
- S21527
- UN registration
- ST/SG/SER.E/258
Mission
- Mission type
- Space science
- Use
- Civil government
- Program
- STP1
- Owner
- USAF Rome
- Country
- United States
- Builder
- Defense Systems Inc
- Platform (bus)
- Ministar
Launch
- Date
- June 29, 1991 · 14:00 UTC
- Launch record
- 1991-045Success
- Rocket
- Scout G-1
- Spaceport
- Vandenberg · pad SLC5
Orbit and fate
- Orbit class (GCAT)
- LEO/P
- Perigee
- 771 km
- Apogee
- 875 km
- Inclination
- 89.58°
- Status
- In orbit
- Last known active
- 1992
- End of operations
- Dec 29, 1992
Size
- Mass
- 85 kg
- Dry mass
- 85 kg
- Length
- 0.4 m
- Diameter
- 0.60 m
- Span
- 6.1 m
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q111499776 (CC0).