CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0200
ATLAS CENTAUR R/B
ATLAS CENTAUR R/B (NORAD 20254) re-entered Earth’s atmosphere on 9 May 1991, after 1 year, 7 months in orbit.
Official date
NORAD number
20254
International designator
1989-077B
Object type
Rocket body
Country
United States
Launched
25 Sep 1989Cape Canaveral
Re-entered (UTC)
9 May 1991UTC calendar day
Time in orbit
1 year, 7 months591 days
How it ended
Re-entered (natural decay)
Latitude range
27.9°N to 27.9°SFinal inclination 27.9°
Mass
2,000 kg
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 27.9°, allowed a re-entry anywhere between 27.9°N and 27.9°S.
Life in orbit
1 year, 7 monthsATLAS CENTAUR R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0200
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0200
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.