CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0042
SKYLAB 4
SKYLAB 4 (NORAD 6936) landed after a space station visit on 8 February 1974, after 2 months in orbit.
Official date
NORAD number
6936
International designator
1973-090A
Object type
Spacecraft
Country
United States
Launched
16 Nov 1973Cape Canaveral
Landed (UTC)
8 Feb 1974UTC calendar day
Time in orbit
2 months84 days
How it ended
Landed after a station visit
Latitude range
50.0°N to 50.0°SFinal inclination 50.0°
Mass
5,931 kg
Operator
NASA JSC
Built by
Rockwell/Downey
Bus
CM
Programme
Apollo II
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 50.0°, allowed a re-entry anywhere between 50.0°N and 50.0°S.
Life in orbit
2 monthsSKYLAB 4’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1973-090
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0042
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0042
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.