CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1976-0028
OPS 7681
OPS 7681 (NORAD 5469) re-entered Earth’s atmosphere on 3 February 1976, after 4 years, 4 months in orbit.
Official date
NORAD number
5469
International designator
1971-076B
Object type
Spacecraft
Country
United States
Launched
10 Sep 1971Vandenberg
Re-entered (UTC)
3 Feb 1976UTC calendar day
Time in orbit
4 years, 4 months1,607 days
How it ended
Re-entered (natural decay)
Latitude range
75.0°N to 75.0°SFinal inclination 75.0°
Mass
160 kg
Operator
NRO / SAFSP
Built by
LMSC / Cutler-Hammer/AIL
Bus
P-11 H
Programme
EHH B
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 75.0°, allowed a re-entry anywhere between 75.0°N and 75.0°S.
Life in orbit
4 years, 4 monthsOPS 7681’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1971-076
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1976-0028
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1976-0028
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.