CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1991-0195

STS 39

STS 39 (NORAD 21242) landed on 6 May 1991, after 8 days in orbit.

Official date
NORAD number
21242
International designator
1991-031A
Object type
Spacecraft
Country
United States
Launched
28 Apr 1991Cape Canaveral
Landed (UTC)
6 May 1991Recorded time 18:55 UTC
Time in orbit
8 days8 days
How it ended
Landed
Latitude range
57.0°N to 57.0°SFinal inclination 57.0°
Mass
96,701 kg
Operator
NASA JSC
Built by
RWI/Palmdale
Bus
STS OV
Programme
OV-103

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 57.0°, allowed a re-entry anywhere between 57.0°N and 57.0°S.

Life in orbit

8 days

Also ended on 6 May 1991

4 entries
1991-0192COSMOS 1511991-0196IBSS1991-0193SL-12 R/B(AUX MOTOR)1991-0194DELTA 2 R/B(2) (PAM-D)

From the same launch

1991-031
1991-0196IBSS1991-0205CRO-B1991-0206CRO-A1991-0207CRO-C1991-0337USA 70
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0195
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.