CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0380
MIGHTYSAT 1
MIGHTYSAT 1 (NORAD 25551) re-entered Earth’s atmosphere on 21 November 1999, after 11 months in orbit.
Official date
NORAD number
25551
International designator
1998-069C
Object type
Spacecraft
Country
United States
Launched
4 Dec 1998Cape Canaveral
Re-entered (UTC)
21 Nov 1999UTC calendar day
Time in orbit
11 months352 days
How it ended
Re-entered (natural decay)
Latitude range
51.5°N to 51.5°SFinal inclination 51.5°
Mass
68 kg
Operator
AFRL/RV
Built by
OSC-McLean
Bus
Minisat-deriv
Programme
STP1
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 51.5°, allowed a re-entry anywhere between 51.5°N and 51.5°S.
Life in orbit
11 monthsMIGHTYSAT 1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 21 Nov 1999
4 entriesFrom the same launch
1998-069
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0380
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0380
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.