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: 6 days ago
TLE from 6 days ago
0 ATLAS 5 CENTAUR DEB
1 55856U 18079HJ 26196.55155765 -.00000134 00000-0 00000+0 0 9995
2 55856 14.0544 9.1557 4548539 359.5872 0.0621 1.90453193 15654Epoch: 2026-07-15T13:14Z
TLE epoch observation values (Epoch: 2026-07-15T13:14:14.580Z)
Latitude
0.00007°
Longitude
-122.79243°
Altitude
8,637.837 km
Speed
6.212 km/s
True Right ascension
00h 36m 41s
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
04:25:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
33,622.046 km
Perigee altitude
8,610.271 km
Semi-major axis
27,494.295 km
Eccentricity
0.45485
Inclination
14.0544°
RAAN
9.1557°
Arg. of periapsis
359.5872°
True anomaly
0.18609°
Mean anomaly
0.0621°
Eccentric anomaly
0.11391°
Mean motion
0.47608 °/min
Orbital period
756.18 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. |
|---|---|---|---|---|---|---|---|
| 487 mins | 2026-07-21 21:45:03.476Z | 265.447° W | 2026-07-21 23:52:03.476Z | 241.207° WSW | 28.252° | 2026-07-22 05:52:03.476Z | 236.005° WSW |
| 115 mins | 2026-07-22 07:13:03.476Z | 223.584° SW | 2026-07-22 08:35:03.476Z | 169.354° S | 18.038° | 2026-07-22 09:08:03.476Z | 122.241° SE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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