CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1981-0120

DELTA 1 R/B(2)

DELTA 1 R/B(2) (NORAD 11637) re-entered Earth’s atmosphere on 28 March 1981, after 1 year, 3 months in orbit.

Official date
NORAD number
11637
International designator
1979-101C
Object type
Rocket body
Country
United States
Launched
7 Dec 1979Cape Canaveral
Re-entered (UTC)
28 Mar 1981UTC calendar dayAlso recorded as 27 Mar 1980
Time in orbit
1 year, 3 months477 days
How it ended
Re-entered (natural decay)
Latitude range
—

Where it came down

Not on record

No position was recorded for this re-entry. Its final orbit is not on record.

Life in orbit

1 year, 3 months
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0120
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