CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0211
OPS 8607
OPS 8607 (NORAD 5409) came down while still attached to its host on 3 September 1971, after 22 days in orbit.
Official date
NORAD number
5409
International designator
1971-070A
Object type
Spacecraft
Country
United States
Launched
12 Aug 1971Vandenberg
Re-entered (UTC)
3 Sep 1971UTC calendar day
Time in orbit
22 days22 days
How it ended
Came down attached to its host
Latitude range
69.0°N to 69.0°SFinal inclination 111.0°
Mass
2,400 kg
Operator
NRO / SAFSP
Built by
LMSC
Bus
KH-8
Programme
KH8C
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 111.0°, allowed a re-entry anywhere between 69.0°N and 69.0°S.
Life in orbit
22 daysOPS 8607’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 3 Sep 1971
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0211
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0211
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.