CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0272
OPS 3402
OPS 3402 (NORAD 4343) re-entered Earth’s atmosphere on 10 November 1971, after 1 year, 8 months in orbit.
Official date
NORAD number
4343
International designator
1970-016B
Object type
Spacecraft
Country
United States
Launched
4 Mar 1970Vandenberg
Re-entered (UTC)
10 Nov 1971UTC calendar day
Time in orbit
1 year, 8 months616 days
How it ended
Re-entered (natural decay)
Latitude range
88.1°N to 88.1°SFinal inclination 88.1°
Mass
146 kg
Operator
NRO / SAFSP
Built by
LMSC / ESL
Bus
P-11 H
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 88.1°, allowed a re-entry anywhere between 88.1°N and 88.1°S.
Life in orbit
1 year, 8 monthsOPS 3402’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1970-016
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0272
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0272
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.