CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0382
OPS 6829
OPS 6829 (NORAD 4722) re-entered Earth’s atmosphere on 14 September 1977, after 6 years, 9 months in orbit.
Official date
NORAD number
4722
International designator
1970-098B
Object type
Spacecraft
Country
United States
Launched
18 Nov 1970Vandenberg
Re-entered (UTC)
14 Sep 1977UTC calendar day
Time in orbit
6 years, 9 months2,492 days
How it ended
Re-entered (natural decay)
Latitude range
83.1°N to 83.1°SFinal inclination 83.1°
Mass
141 kg
Operator
NRO / SAFSP
Built by
LMSC / LTV ESD
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 83.1°, allowed a re-entry anywhere between 83.1°N and 83.1°S.
Life in orbit
6 years, 9 monthsOPS 6829’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1970-098
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0382
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0382
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.