CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2020-0179
OGO 1
OGO 1 (NORAD 879) re-entered Earth’s atmosphere on 29 August 2020 over the South Pacific Ocean, after 55 years, 11 months in orbit.
Official date
NORAD number
879
International designator
1964-054A
Object type
Spacecraft
Country
United States
Launched
5 Sep 1964Cape Canaveral
Re-entered (UTC)
29 Aug 2020UTC calendar day
Time in orbit
55 years, 11 months20,447 days
How it ended
Re-entered (natural decay)
Latitude range
55.0°N to 55.0°SFinal inclination 55.0°
Mass
487 kg
Operator
GSFC
Built by
TRW
Bus
OGO
Programme
EGO
Where it came down
Recorded positionRecorded position 15.0°S, 151.0°W. Its final orbit, inclined at 55.0°, allowed a re-entry anywhere between 55.0°N and 55.0°S.
Life in orbit
55 years, 11 monthsOGO 1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 29 Aug 2020
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2020-0179
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2020-0179
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.