CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0532
APOLLO 9 LM (APS)
APOLLO 9 LM (APS) (NORAD 3771) re-entered Earth’s atmosphere on 23 October 1981, after 12 years, 7 months in orbit.
Official date
NORAD number
3771
International designator
1969-018C
Object type
Spacecraft
Country
United States
Launched
3 Mar 1969Cape Canaveral
Re-entered (UTC)
23 Oct 1981UTC calendar day
Time in orbit
12 years, 7 months4,617 days
How it ended
Re-entered (natural decay)
Latitude range
28.8°N to 28.8°SFinal inclination 28.8°
Mass
4,176 kg
Operator
MSC
Built by
Grummann
Bus
LM AS
Programme
LM AS
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 28.8°, allowed a re-entry anywhere between 28.8°N and 28.8°S.
Life in orbit
12 years, 7 monthsAPOLLO 9 LM (APS)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 23 Oct 1981
2 entriesFrom the same launch
1969-018
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0532
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0532
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.