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: 4 hours ago
TLE from 4 hours ago
0 PROMETHEUS 2-3
1 41855U 16067H 25294.62944956 .00222318 00000-0 17449-2 0 9995
2 41855 98.0409 164.2477 0006114 109.7326 250.4595 15.70841621491252Epoch: 2025-10-21T15:06Z
TLE epoch observation values (Epoch: 2025-10-21T15:06:24.441Z)
Latitude
-0.00001°
Longitude
-92.6688°
Altitude
361.01 km
Speed
7.692 km/s
True Right ascension
10h 56m 59s
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
14:07:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
357.533 km
Perigee altitude
349.302 km
Semi-major axis
6,731.555 km
Eccentricity
0.00061
Inclination
98.0409°
RAAN
164.2477°
Arg. of periapsis
109.7326°
True anomaly
250.39349°
Mean anomaly
250.4595°
Eccentric anomaly
250.42649°
Mean motion
3.9298 °/min
Orbital period
91.61 mins
BSTAR
0.0017449
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-10-22 03:53:49.481Z | 40.046° NE | 2025-10-22 03:55:49.481Z | 92.524° ESE | 24.889° | 2025-10-22 03:57:49.481Z | 153.7° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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