CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1976-0089
OPS 4428
OPS 4428 (NORAD 8467) was deorbited in a controlled re-entry on 1 April 1976, after 3 months in orbit.
Controlled re-entryOfficial date
NORAD number
8467
International designator
1975-114A
Object type
Spacecraft
Country
United States
Launched
4 Dec 1975Vandenberg
Re-entered (UTC)
1 Apr 1976UTC calendar day
Time in orbit
3 months119 days
How it ended
Deorbited (controlled re-entry)
Latitude range
83.8°N to 83.8°SFinal inclination 96.2°
Mass
7,624 kg
Operator
NRO / SAFSP
Built by
LMSC
Bus
KH-9
Programme
Hex II
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 96.2°, allowed a re-entry anywhere between 83.8°N and 83.8°S.
Life in orbit
3 monthsOPS 4428’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 1 Apr 1976
2 entriesFrom the same launch
1975-114
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1976-0089
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1976-0089
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.