CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2019-0070
IRIDIUM 55
IRIDIUM 55 (NORAD 25272) re-entered Earth’s atmosphere on 31 March 2019, after 21 years in orbit.
Official date
NORAD number
25272
International designator
1998-019A
Object type
Spacecraft
Country
United States
Launched
30 Mar 1998Vandenberg
Re-entered (UTC)
31 Mar 2019Recorded time 08:04 UTC
Time in orbit
21 years7,671 days
How it ended
Re-entered (natural decay)
Latitude range
86.7°N to 86.7°SFinal inclination 86.7°
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 86.7°, allowed a re-entry anywhere between 86.7°N and 86.7°S.
Life in orbit
21 yearsIRIDIUM 55’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 31 Mar 2019
1 entryFrom the same launch
1998-019
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2019-0070
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2019-0070
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.