CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0005
D5A (POLLUX)
D5A (POLLUX) (NORAD 7801) re-entered Earth’s atmosphere on 4 January 1978, after 2 years, 7 months in orbit.
Official date
NORAD number
7801
International designator
1975-039A
Object type
Spacecraft
Country
France
Launched
17 May 1975Guiana Space Centre
Re-entered (UTC)
4 Jan 1978UTC calendar dayAlso recorded as 5 Aug 1975
Time in orbit
2 years, 7 months963 days
How it ended
Re-entered (natural decay)
Latitude range
29.9°N to 29.9°SFinal inclination 29.9°
Mass
30 kg
Operator
CNES
Built by
Ae/Cannes
Bus
D-5A
Programme
Diamant Tech
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 29.9°, allowed a re-entry anywhere between 29.9°N and 29.9°S.
Life in orbit
2 years, 7 monthsD5A (POLLUX)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 4 Jan 1978
3 entriesFrom the same launch
1975-039
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0005
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0005
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.