2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. UoSat-1
// communications · 1981

UoSat-1

British amateur radio satellite. UoSat-1 was launched on October 6, 1981 aboard a Delta 2310 from Vandenberg. Latest status in GCAT: reentered (orbital decay) (Oct 13, 1989).

COSPAR 1981-100BNORAD 12888United Kingdom

Identity

Name in GCAT
UoSAT-OSCAR-9
Common name
UoSat-1
Payload designation
UoSAT 1
Other names
UO-9
International designator
1981-100B
NORAD catalog number
12888
GCAT identifier
S12888
UN registration
ST/SG/SER.E/129

Mission

Mission type
Communications
Use
Commercial
Program
UoSAT
Owner
U of Surrey
Country
United Kingdom
Builder
University of Surrey Dept. of Electronic and Electrical Eng.
Platform (bus)
UoSAT

Launch

Date
October 6, 1981 · 11:27 UTC
Launch record
1981-100Success
Spaceport
Vandenberg · pad SLC2W

Orbit and fate

Orbit class (GCAT)
LLEO/S
Perigee
483 km
Apogee
488 km
Inclination
97.61°
Status
Reentered (orbital decay)
Status date
October 13, 1989
Last known active
Oct 12, 1989
End of operations
Oct 12, 1989

Size

Mass
52 kg
Dry mass
52 kg
Length
0.7 m
Diameter
0.40 m
Span
6.5 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q7897874 (CC0).