CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2001-0233
HAPS
HAPS (NORAD 25121) re-entered Earth’s atmosphere on 1 September 2001, after 3 years, 8 months in orbit.
Official date
NORAD number
25121
International designator
1997-084K
Object type
Spacecraft
Country
United States
Launched
23 Dec 1997Air launch (Atlantic)
Re-entered (UTC)
1 Sep 2001UTC calendar day
Time in orbit
3 years, 8 months1,348 days
How it ended
Re-entered (natural decay)
Latitude range
42.6°N to 42.6°SFinal inclination 42.6°
Mass
97 kg
Operator
OSC Chandler
Built by
OSC Chandler
Bus
HAPS
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 42.6°, allowed a re-entry anywhere between 42.6°N and 42.6°S.
Life in orbit
3 years, 8 monthsHAPS’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1997-084
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2001-0233
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2001-0233
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.