PROMETHEUS 2-3, 41855
Orbit data source: Space-Track
PROMETHEUS 2-3, 41855 is a payload satellite owned by SOCOM (US) in SSO that was launched on Fri, 11 Nov 2016 UTC via an ATLAS V 401 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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41855 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
LANL
Mission
Operational Defense Communications
Bus & Motor
CUBESAT 1.5U, Unknown motor
Mass
2 kg wet, 2 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.1 m
Radar Cross Section
0.015 m², Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 PROMETHEUS 2-3
1 41855U 16067H 25259.58149577 .00086541 00000-0 10800-2 0 9997
2 41855 98.0527 124.2763 0002508 223.9129 136.1926 15.59582003485771Epoch: 2025-09-16T13:57Z
TLE epoch observation values (Epoch: 2025-09-16T13:57:21.234Z)
Latitude
-0.00008°
Longitude
-80.8319°
Altitude
393.215 km
Speed
7.674 km/s
True Right ascension
08h 17m 06s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
23:00:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
387.505 km
Perigee altitude
384.112 km
Semi-major axis
6,763.946 km
Eccentricity
0.00025
Inclination
98.0527°
RAAN
124.2763°
Arg. of periapsis
223.9129°
True anomaly
136.21249°
Mean anomaly
136.1926°
Eccentric anomaly
136.20255°
Mean motion
3.9016 °/min
Orbital period
92.27 mins
BSTAR
0.00108
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Other satellites on launch #67 in the year 2016 (2016-11-11 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.PROMETHEUS 2-3 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-17 14:43:37.047Z | 140.95° SSE | 2025-09-17 14:46:37.047Z | 49.826° ENE | 29.936° | 2025-09-17 14:48:37.047Z | 6.391° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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