CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0260
EXPLORER 43 (IMP-6)
EXPLORER 43 (IMP-6) (NORAD 5043) re-entered Earth’s atmosphere on 2 October 1974, after 3 years, 6 months in orbit.
Official date
NORAD number
5043
International designator
1971-019A
Object type
Spacecraft
Country
United States
Launched
13 Mar 1971Cape Canaveral
Re-entered (UTC)
2 Oct 1974UTC calendar day
Time in orbit
3 years, 6 months1,299 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
288 kg
Operator
GSFC
Built by
GSFC
Bus
IMP
Programme
IMP
Where it came down
Not on recordNo position was recorded for this re-entry. Its final orbit is not on record.
Life in orbit
3 years, 6 monthsAlso ended on 2 Oct 1974
1 entryFrom the same launch
1971-019
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0260
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0260
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.