CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0883
OSCAR 9 (UOSAT 1)
OSCAR 9 (UOSAT 1) (NORAD 12888) re-entered Earth’s atmosphere on 13 October 1989, after 8 years in orbit.
Official date
NORAD number
12888
International designator
1981-100B
Object type
Spacecraft
Country
United Kingdom
Launched
6 Oct 1981Vandenberg
Re-entered (UTC)
13 Oct 1989UTC calendar day
Time in orbit
8 years2,929 days
How it ended
Re-entered (natural decay)
Latitude range
82.5°N to 82.5°SFinal inclination 97.5°
Mass
52 kg
Operator
U of Surrey
Built by
U of Surrey
Bus
UoSAT
Programme
UoSAT
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 97.5°, allowed a re-entry anywhere between 82.5°N and 82.5°S.
Life in orbit
8 yearsOSCAR 9 (UOSAT 1)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 13 Oct 1989
2 entriesFrom the same launch
1981-100
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0883
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0883
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.