CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1982-0214
OSO 4
OSO 4 (NORAD 3000) re-entered Earth’s atmosphere on 15 June 1982, after 14 years, 7 months in orbit.
Official date
NORAD number
3000
International designator
1967-100A
Object type
Spacecraft
Country
United States
Launched
18 Oct 1967Cape Canaveral
Re-entered (UTC)
15 Jun 1982UTC calendar day
Time in orbit
14 years, 7 months5,354 days
How it ended
Re-entered (natural decay)
Latitude range
33.0°N to 33.0°SFinal inclination 33.0°
Mass
285 kg
Operator
GSFC
Built by
Ball
Bus
OSO
Programme
OSO
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 33.0°, allowed a re-entry anywhere between 33.0°N and 33.0°S.
Life in orbit
14 years, 7 monthsOSO 4’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Jun 1982
5 entriesFrom the same launch
1967-100
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1982-0214
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1982-0214
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.