CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1982-0444

OPS 2581

OPS 2581 (NORAD 11687) was deorbited in a controlled re-entry on 30 October 1982, after 2 years, 8 months in orbit.

Controlled re-entryOfficial date
NORAD number
11687
International designator
1980-010A
Object type
Spacecraft
Country
United States
Launched
7 Feb 1980Vandenberg
Re-entered (UTC)
30 Oct 1982UTC calendar day
Time in orbit
2 years, 8 months996 days
How it ended
Deorbited (controlled re-entry)
Latitude range
83.1°N to 83.1°SFinal inclination 96.9°
Mass
8,556 kg
Operator
NRO / CIA
Built by
TRW
Bus
KH-11
Programme
KH-11

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 96.9°, allowed a re-entry anywhere between 83.1°N and 83.1°S.

Life in orbit

2 years, 8 months

OPS 2581’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 30 Oct 1982

4 entries
1982-0445COSMOS 1220 DEB1982-0446COSMOS 1403 DEB1982-0447COSMOS 1404 DEB1982-0448COSMOS 1416 DEB

From the same launch

1980-010
1980-0104TITAN 3D R/B
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1982-0444
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