CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1975-0163
OPS 4883
OPS 4883 (NORAD 7747) came down while still attached to its host on 5 June 1975, after 1 month in orbit.
Official date
NORAD number
7747
International designator
1975-032A
Object type
Spacecraft
Country
United States
Launched
18 Apr 1975Vandenberg
Re-entered (UTC)
5 Jun 1975UTC calendar day
Time in orbit
1 month48 days
How it ended
Came down attached to its host
Latitude range
69.5°N to 69.5°SFinal inclination 110.5°
Mass
2,400 kg
Operator
NRO / SAFSP
Built by
LMSC
Bus
KH-8
Programme
KH8D
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 110.5°, allowed a re-entry anywhere between 69.5°N and 69.5°S.
Life in orbit
1 monthOPS 4883’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0163
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1975-0163
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.