CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1970-0105
OPS 2863
OPS 2863 (NORAD 4375) came down while still attached to its host on 6 May 1970, after 21 days in orbit.
Official date
NORAD number
4375
International designator
1970-031A
Object type
Spacecraft
Country
United States
Launched
15 Apr 1970Vandenberg
Re-entered (UTC)
6 May 1970UTC calendar day
Time in orbit
21 days21 days
How it ended
Came down attached to its host
Latitude range
69.1°N to 69.1°SFinal inclination 110.9°
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 110.9°, allowed a re-entry anywhere between 69.1°N and 69.1°S.
Life in orbit
21 daysOPS 2863’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/1970-0105
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1970-0105
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.