CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1976-0632

DELTA 1 R/B

DELTA 1 R/B (NORAD 3993) re-entered Earth’s atmosphere on 10 December 1976, after 7 years, 5 months in orbit.

Official date
NORAD number
3993
International designator
1969-053B
Object type
Rocket body
Country
United States
Launched
21 Jun 1969Vandenberg
Re-entered (UTC)
10 Dec 1976UTC calendar day
Time in orbit
7 years, 5 months2,729 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
40 kg

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

7 years, 5 months

Also ended on 10 Dec 1976

1 entry
1976-0633SL-6 PLAT

From the same launch

1969-053
1972-0361EXPLORER 41 (IMP-5)
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Entered in the Orbital Register™, founding volume, September 2026.
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