CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0030
OPS 7776
OPS 7776 (NORAD 4874) came down while still attached to its host on 9 February 1971, after 19 days in orbit.
Official date
NORAD number
4874
International designator
1971-005A
Object type
Spacecraft
Country
United States
Launched
21 Jan 1971Vandenberg
Re-entered (UTC)
9 Feb 1971UTC calendar day
Time in orbit
19 days19 days
How it ended
Came down attached to its host
Latitude range
69.2°N to 69.2°SFinal inclination 110.8°
Mass
2,400 kg
Operator
NRO / SAFSP
Built by
LMSC
Bus
KH-8
Programme
KH8B
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 110.8°, allowed a re-entry anywhere between 69.2°N and 69.2°S.
Life in orbit
19 daysOPS 7776’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 9 Feb 1971
3 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0030
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0030
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.