CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1968-0260
OPS 1873
OPS 1873 (NORAD 2851) re-entered Earth’s atmosphere on 22 October 1968, after 1 year, 4 months in orbit.
Official date
NORAD number
2851
International designator
1967-062B
Object type
Spacecraft
Country
United States
Launched
16 Jun 1967Vandenberg
Re-entered (UTC)
22 Oct 1968UTC calendar day
Time in orbit
1 year, 4 months494 days
How it ended
Re-entered (natural decay)
Latitude range
80.2°N to 80.2°SFinal inclination 80.2°
Mass
100 kg
Operator
NRO / SAFSP
Built by
LMSC / ESL
Bus
P-11 ML
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 80.2°, allowed a re-entry anywhere between 80.2°N and 80.2°S.
Life in orbit
1 year, 4 monthsOPS 1873’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 22 Oct 1968
2 entriesFrom the same launch
1967-062
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1968-0260
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1968-0260
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.