CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0345
ATHENA 2 R/B
ATHENA 2 R/B (NORAD 25921) re-entered Earth’s atmosphere on 25 October 1999, after 1 month in orbit.
Official date
NORAD number
25921
International designator
1999-051C
Object type
Rocket body
Country
United States
Launched
24 Sep 1999Vandenberg
Re-entered (UTC)
25 Oct 1999UTC calendar day
Time in orbit
1 month31 days
How it ended
Re-entered (natural decay)
Latitude range
81.8°N to 81.8°SFinal inclination 98.2°
Mass
10,600 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 98.2°, allowed a re-entry anywhere between 81.8°N and 81.8°S.
Life in orbit
1 monthATHENA 2 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 25 Oct 1999
2 entriesFrom the same launch
1999-051
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0345
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0345
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.