CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1983-0478
GRS
GRS (NORAD 612) came down while still attached to its host on 14 December 1983, after 20 years, 5 months in orbit.
Official date
NORAD number
612
International designator
1963-026A
Object type
Spacecraft
Country
United States
Launched
28 Jun 1963Wallops
Re-entered (UTC)
14 Dec 1983UTC calendar day
Time in orbit
20 years, 5 months7,474 days
How it ended
Came down attached to its host
Latitude range
49.6°N to 49.6°SFinal inclination 49.6°
Mass
66 kg
Operator
AFCRL
Built by
AFCRL
Bus
GRS
Programme
AFCRL
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 49.6°, allowed a re-entry anywhere between 49.6°N and 49.6°S.
Life in orbit
20 years, 5 monthsGRS’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 14 Dec 1983
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1983-0478
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1983-0478
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.