CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0988
CAT 1
CAT 1 (NORAD 11645) re-entered Earth’s atmosphere on 27 November 1989, after 9 years, 11 months in orbit.
Official date
NORAD number
11645
International designator
1979-104A
Object type
Spacecraft
Country
European Space Agency
Launched
24 Dec 1979Guiana Space Centre
Re-entered (UTC)
27 Nov 1989UTC calendar day
Time in orbit
9 years, 11 months3,626 days
How it ended
Re-entered (natural decay)
Latitude range
17.7°N to 17.7°SFinal inclination 17.7°
Mass
1,602 kg
Operator
ESA
Built by
Aeritalia / CNES CST
Bus
CAT
Programme
CAT
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 17.7°, allowed a re-entry anywhere between 17.7°N and 17.7°S.
Life in orbit
9 years, 11 monthsCAT 1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 27 Nov 1989
3 entriesFrom the same launch
1979-104
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0988
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0988
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.