CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1976-0063
EXPLORER 54 (AE-D)
EXPLORER 54 (AE-D) (NORAD 8353) re-entered Earth’s atmosphere on 12 March 1976, after 5 months in orbit.
Official date
NORAD number
8353
International designator
1975-096A
Object type
Spacecraft
Country
United States
Launched
6 Oct 1975Vandenberg
Re-entered (UTC)
12 Mar 1976UTC calendar day
Time in orbit
5 months158 days
How it ended
Re-entered (natural decay)
Latitude range
89.9°N to 89.9°SFinal inclination 89.9°
Mass
675 kg
Operator
GSFC
Built by
RCA/East Windsor
Bus
AE-C
Programme
Explorer AE
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 89.9°, allowed a re-entry anywhere between 89.9°N and 89.9°S.
Life in orbit
5 monthsEXPLORER 54 (AE-D)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 12 Mar 1976
1 entryFrom the same launch
1975-096
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1976-0063
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1976-0063
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.