CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2018-0020
IRIDIUM 43
IRIDIUM 43 (NORAD 25039) re-entered Earth’s atmosphere on 11 February 2018, after 20 years, 3 months in orbit.
Official date
NORAD number
25039
International designator
1997-069A
Object type
Spacecraft
Country
United States
Launched
9 Nov 1997Vandenberg
Re-entered (UTC)
11 Feb 2018UTC calendar day
Time in orbit
20 years, 3 months7,399 days
How it ended
Re-entered (natural decay)
Latitude range
86.4°N to 86.4°SFinal inclination 86.4°
Mass
662 kg
Operator
Built by
Motorola / LMMS/Sunnyvale
Bus
LM700
Programme
Iridium
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 86.4°, allowed a re-entry anywhere between 86.4°N and 86.4°S.
Life in orbit
20 years, 3 monthsIRIDIUM 43’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 11 Feb 2018
1 entryFrom the same launch
1997-069
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2018-0020
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2018-0020
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.