CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2023-1659
IUS R/B(1)
IUS R/B(1) (NORAD 19884) re-entered Earth’s atmosphere on 30 September 2023 over the Indian Ocean, after 34 years, 6 months in orbit.
Official date
NORAD number
19884
International designator
1989-021C
Object type
Rocket body
Country
United States
Launched
13 Mar 1989Cape Canaveral
Re-entered (UTC)
30 Sep 2023Recorded time 23:44 UTC
Time in orbit
34 years, 6 months12,619 days
How it ended
Re-entered (natural decay)
Latitude range
26.1°N to 26.1°SFinal inclination 26.1°
Mass
11,028 kg
Where it came down
Recorded positionRecorded position 26.0°S, 88.0°E at 23:44 UTC. Its final orbit, inclined at 26.1°, allowed a re-entry anywhere between 26.1°N and 26.1°S.
Life in orbit
34 years, 6 monthsIUS R/B(1)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1989-021
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2023-1659
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2023-1659
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.