CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2015-0464
PROMETHEUS 1-1
PROMETHEUS 1-1 (NORAD 39406) re-entered Earth’s atmosphere on 12 December 2015, after 2 years in orbit.
Official date
NORAD number
39406
International designator
2013-064AC
Object type
Spacecraft
Country
United States
Launched
20 Nov 2013Wallops
Re-entered (UTC)
12 Dec 2015UTC calendar day
Time in orbit
2 years752 days
How it ended
Re-entered (natural decay)
Latitude range
40.5°N to 40.5°SFinal inclination 40.5°
Mass
1 kg
Operator
SOCOM / LANL
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 40.5°, allowed a re-entry anywhere between 40.5°N and 40.5°S.
Life in orbit
2 yearsPROMETHEUS 1-1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 12 Dec 2015
1 entryFrom the same launch
2013-064
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2015-0464
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2015-0464
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.