USA 255, 40101
Orbit data source: Space-Track
USA 255, 40101 is a payload satellite owned by AFRL/RV (US) in GEO that was launched on Mon, 28 Jul 2014 UTC via a DELTA 4M+(4,2) launch vehicle from the Air Force Eastern Test Range (AFETR). 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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40101 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
OSC
Mission
Non-operational Defense Classified
Bus & Motor
ANGELS, AOCS
Mass
70 kg wet, 70 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 0.3 m
Radar Cross Section
0.375 m²
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 USA 255
1 40101U 14043C 25240.67288968 -.00000225 00000-0 00000-0 0 9995
2 40101 8.5418 60.1215 0012078 323.6887 328.9537 0.98728624 22416Epoch: 2025-08-28T16:08Z
TLE epoch observation values (Epoch: 2025-08-28T16:08:57.668Z)
Latitude
-7.89574°
Longitude
133.53505°
Altitude
36,181.586 km
Speed
3.062 km/s
True Right ascension
23h 31m 37s
True Declination
-7° 53' 16"
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
18:17:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,277.307 km
Perigee altitude
36,174.393 km
Semi-major axis
42,603.987 km
Eccentricity
0.00121
Inclination
8.5418°
RAAN
60.1215°
Arg. of periapsis
323.6887°
True anomaly
328.88223°
Mean anomaly
328.9537°
Eccentric anomaly
328.91797°
Mean motion
0.24681 °/min
Orbital period
1,458.59 mins
BSTAR
0
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Other satellites on launch #43 in the year 2014 (2014-07-28 UTC)
USA 255 Visibility
Observer location: undefined°, undefined°
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. |
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40101 neighbors
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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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