ATLAS 5 CENTAUR DEB, 55856
Orbit data source: Space-Track
ATLAS 5 CENTAUR DEB, 55856 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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55856 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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 2 months ago
TLE from 2 months ago
0 ATLAS 5 CENTAUR DEB
1 55856U 18079HJ 26206.00188946 -.00000113 00000-0 00000-0 0 9992
2 55856 14.0578 8.3084 4549547 1.2408 359.5187 1.90454767 15830Epoch: 2026-07-25T00:02Z
TLE epoch observation values (Epoch: 2026-07-25T00:02:43.249Z)
Latitude
-0.00005°
Longitude
64.92266°
Altitude
8,631.351 km
Speed
6.214 km/s
True Right ascension
00h 33m 17s
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
04:01:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
33,624.597 km
Perigee altitude
8,607.417 km
Semi-major axis
27,494.144 km
Eccentricity
0.45495
Inclination
14.0578°
RAAN
8.3084°
Arg. of periapsis
1.2408°
True anomaly
358.55734°
Mean anomaly
359.5187°
Eccentric anomaly
359.11698°
Mean motion
0.47608 °/min
Orbital period
756.17 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. |
|---|---|---|---|---|---|---|---|
| 110 mins | 2026-09-22 07:31:56.954Z | 222.6° SW | 2026-09-22 08:15:56.954Z | 156.436° SSE | 35.305° | 2026-09-22 09:21:56.954Z | 94.435° ESE |
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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