CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0168
STS 1 (OFT-1)
STS 1 (OFT-1) (NORAD 12399) landed on 14 April 1981, after 2 days in orbit.
Official date
NORAD number
12399
International designator
1981-034A
Object type
Spacecraft
Country
United States
Launched
12 Apr 1981Cape Canaveral
Landed (UTC)
14 Apr 1981Recorded time 18:20 UTC
Time in orbit
2 days2 days
How it ended
Landed
Latitude range
40.3°N to 40.3°SFinal inclination 40.3°
Mass
89,739 kg
Operator
NASA JSC
Built by
RWI/Palmdale
Bus
STS OV
Programme
OV-102
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 40.3°, allowed a re-entry anywhere between 40.3°N and 40.3°S.
Life in orbit
2 daysAlso ended on 14 Apr 1981
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0168
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0168
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.