CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0315
ATHENA 2 R/B(OAM)
ATHENA 2 R/B(OAM) (NORAD 25920) re-entered Earth’s atmosphere on 28 September 1999, after 4 days in orbit.
Official date
NORAD number
25920
International designator
1999-051B
Object type
Rocket body
Country
United States
Launched
24 Sep 1999Vandenberg
Re-entered (UTC)
28 Sep 1999UTC calendar day
Time in orbit
4 days4 days
How it ended
Re-entered (natural decay)
Latitude range
82.3°N to 82.3°SFinal inclination 97.7°
Mass
650 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 97.7°, allowed a re-entry anywhere between 82.3°N and 82.3°S.
Life in orbit
4 daysAlso ended on 28 Sep 1999
2 entriesFrom the same launch
1999-051Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0315
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0315
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.