CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0168
DELTA 2 R/B
DELTA 2 R/B (NORAD 25683) re-entered Earth’s atmosphere on 31 May 1999, after 1 month in orbit.
Official date
NORAD number
25683
International designator
1999-020B
Object type
Rocket body
Country
United States
Launched
15 Apr 1999Vandenberg
Re-entered (UTC)
31 May 1999UTC calendar dayAlso recorded as 30 May 1999
Time in orbit
1 month46 days
How it ended
Re-entered (natural decay)
Latitude range
72.4°N to 72.4°SFinal inclination 107.6°
Mass
6,930 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 107.6°, allowed a re-entry anywhere between 72.4°N and 72.4°S.
Life in orbit
1 monthDELTA 2 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 31 May 1999
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0168
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0168
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.