CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0027
EXPLORER 15 (SERB 53B)
EXPLORER 15 (SERB 53B) (NORAD 445) re-entered Earth’s atmosphere on 15 January 1978, after 15 years, 2 months in orbit.
Official date
NORAD number
445
International designator
1962-059A
Object type
Spacecraft
Country
United States
Launched
27 Oct 1962Cape Canaveral
Re-entered (UTC)
15 Jan 1978UTC calendar day
Time in orbit
15 years, 2 months5,559 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
44 kg
Operator
GSFC
Built by
Raymond EL
Bus
EPE
Programme
Explorer EPE
Where it came down
Not on recordNo position was recorded for this re-entry. Its final orbit is not on record.
Life in orbit
15 years, 2 monthsEXPLORER 15 (SERB 53B)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1962-059
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0027
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0027
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.