ATLAS 5 CENTAUR DEB, 55857
Orbit data source: Space-Track
ATLAS 5 CENTAUR DEB, 55857 is space debris in HEO originally from a launch on Wed, 17 Oct 2018 UTC launched from the Air Force Eastern Test Range (AFETR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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55857 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
ULA Decatur
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 1.1 m
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 ATLAS 5 CENTAUR DEB
1 55857U 18079HK 26222.39490044 -.00000082 00000-0 00000+0 0 9992
2 55857 13.7924 343.5023 4542523 59.0399 337.8192 2.00178934 27802Epoch: 2026-08-10T09:28Z
TLE epoch observation values (Epoch: 2026-08-10T09:28:39.398Z)
Latitude
-0.00002°
Longitude
-117.49121°
Altitude
10,754.385 km
Speed
5.616 km/s
True Right ascension
22h 54m 12s
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
17:04:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
32,299.916 km
Perigee altitude
8,136.854 km
Semi-major axis
26,596.522 km
Eccentricity
0.45425
Inclination
13.7924°
RAAN
343.5023°
Arg. of periapsis
59.0399°
True anomaly
300.88052°
Mean anomaly
337.8192°
Eccentric anomaly
321.68193°
Mean motion
0.50039 °/min
Orbital period
719.44 mins
BSTAR
0
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Other satellites on launch #79 in the year 2018 (2018-10-17 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.ATLAS 5 CENTAUR DEB 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. |
|---|---|---|---|---|---|---|---|
| 26 mins | 2026-08-11 02:46:56.177Z | 237.536° WSW | 2026-08-11 02:46:56.177Z | 237.536° WSW | 11.019° | 2026-08-11 03:12:56.177Z | 237.372° WSW |
| 125 mins | 2026-08-11 08:23:56.177Z | 229.527° WSW | 2026-08-11 09:49:56.177Z | 165.324° S | 30.359° | 2026-08-11 10:28:56.177Z | 101.889° ESE |
| 138 mins | 2026-08-12 00:28:56.177Z | 248.615° W | 2026-08-12 01:29:56.177Z | 240.894° WSW | 12.246° | 2026-08-12 02:46:56.177Z | 237.956° WSW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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