CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0371
OPS 8373
OPS 8373 (NORAD 5329) came down while still attached to its host on 31 August 1978, after 7 years, 1 month in orbit.
Official date
NORAD number
5329
International designator
1971-060A
Object type
Spacecraft
Country
United States
Launched
16 Jul 1971Vandenberg
Re-entered (UTC)
31 Aug 1978UTC calendar day
Time in orbit
7 years, 1 month2,603 days
How it ended
Came down attached to its host
Latitude range
75.0°N to 75.0°SFinal inclination 75.0°
Mass
975 kg
Operator
NRO / SAFSP
Built by
LMSC / Cutler-Hammer/AIL
Bus
STRAWMAN
Programme
STRAWMAN
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
7 years, 1 monthOPS 8373’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/1978-0371
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0371
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.