CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0406
SAGE
SAGE (NORAD 11270) re-entered Earth’s atmosphere on 11 April 1989, after 10 years, 1 month in orbit.
Official date
NORAD number
11270
International designator
1979-013A
Object type
Spacecraft
Country
United States
Launched
18 Feb 1979Wallops
Re-entered (UTC)
11 Apr 1989UTC calendar day
Time in orbit
10 years, 1 month3,705 days
How it ended
Re-entered (natural decay)
Latitude range
54.9°N to 54.9°SFinal inclination 54.9°
Mass
147 kg
Operator
GSFC
Built by
GSFC
Bus
AEM
Programme
Explorer AEM
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 54.9°, allowed a re-entry anywhere between 54.9°N and 54.9°S.
Life in orbit
10 years, 1 monthSAGE’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 11 Apr 1989
3 entriesFrom the same launch
1979-013
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0406
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0406
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.