ATLAS 5 CENTAUR DEB, 55855
Orbit data source: Space-Track
ATLAS 5 CENTAUR DEB, 55855 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
55855 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
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: 3 weeks ago
TLE from 3 weeks ago
0 ATLAS 5 CENTAUR DEB
1 55855U 18079HH 25273.80847211 -.00000162 00000-0 00000-0 0 9993
2 55855 13.0604 40.2915 4617787 311.2065 17.2815 1.90884660 13126Epoch: 2025-09-30T19:24Z
TLE epoch observation values (Epoch: 2025-09-30T19:24:11.990Z)
Latitude
-0°
Longitude
99.46634°
Altitude
10,156.023 km
Speed
5.805 km/s
True Right ascension
02h 41m 14s
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
01:18:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
33,751.938 km
Perigee altitude
8,397.602 km
Semi-major axis
27,452.907 km
Eccentricity
0.46178
Inclination
13.0604°
RAAN
40.2915°
Arg. of periapsis
311.2065°
True anomaly
48.90114°
Mean anomaly
17.2815°
Eccentric anomaly
30.84825°
Mean motion
0.47716 °/min
Orbital period
754.47 mins
BSTAR
0
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #79 in the year 2018 (2018-10-17 UTC)
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 166 mins | 2025-10-19 18:21:49.095Z | 269.109° W | 2025-10-19 19:32:49.095Z | 267.225° W | 12.857° | 2025-10-19 21:07:49.095Z | 267.426° W |
| 55 mins | 2025-10-20 03:35:49.095Z | 202.938° SW | 2025-10-20 04:02:49.095Z | 163.774° S | 14.874° | 2025-10-20 04:30:49.095Z | 124.731° 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 ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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 ascending order |
|---|