CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2025-1820
PROMETHEUS 2-1
PROMETHEUS 2-1 (NORAD 41854) re-entered Earth’s atmosphere on 3 December 2025, after 9 years in orbit.
Official date
NORAD number
41854
International designator
2016-067G
Object type
Spacecraft
Country
United States
Launched
11 Nov 2016Vandenberg
Re-entered (UTC)
3 Dec 2025UTC calendar day
Time in orbit
9 years3,309 days
How it ended
Re-entered (natural decay)
Latitude range
82.0°N to 82.0°SFinal inclination 98.0°
Mass
2 kg
Operator
SOCOM
Built by
LANL
Bus
Cubesat 1.5U
Programme
Prometheus
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 98.0°, allowed a re-entry anywhere between 82.0°N and 82.0°S.
Life in orbit
9 yearsPROMETHEUS 2-1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 3 Dec 2025
5 entriesFrom the same launch
2016-067
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2025-1820
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2025-1820
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.