CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1970-0060
OPS 6810
OPS 6810 (NORAD 2397) re-entered Earth’s atmosphere on 5 March 1970, after 3 years, 6 months in orbit.
Official date
NORAD number
2397
International designator
1966-074B
Object type
Spacecraft
Country
United States
Launched
16 Aug 1966Vandenberg
Re-entered (UTC)
5 Mar 1970UTC calendar day
Time in orbit
3 years, 6 months1,297 days
How it ended
Re-entered (natural decay)
Latitude range
86.9°N to 86.9°SFinal inclination 93.1°
Mass
111 kg
Operator
NRO / SAFSP
Built by
LMSC / SEL
Bus
P-11 L
Programme
EHH B
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 93.1°, allowed a re-entry anywhere between 86.9°N and 86.9°S.
Life in orbit
3 years, 6 monthsOPS 6810’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 5 Mar 1970
1 entryFrom the same launch
1966-074
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1970-0060
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1970-0060
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.