THOR ABLESTAR DEB, 538
Orbit data source: Space-Track
THOR ABLESTAR DEB, 538 is space debris in LEO originally from a launch on Thu, 29 Jun 1961 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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538 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 THOR ABLESTAR DEB
1 00538U 61015FX 26175.48277890 .00004445 00000-0 83213-3 0 9992
2 00538 67.8043 302.2144 0010986 247.5880 112.4082 14.65626916364670Epoch: 2026-06-24T11:35Z
TLE epoch observation values (Epoch: 2026-06-24T11:35:12.096Z)
Latitude
-0.00004°
Longitude
-144.22537°
Altitude
680.252 km
Speed
7.515 km/s
True Right ascension
20h 08m 51s
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
03:56:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
681.029 km
Perigee altitude
665.536 km
Semi-major axis
7,051.42 km
Eccentricity
0.0011
Inclination
67.8043°
RAAN
302.2144°
Arg. of periapsis
247.588°
True anomaly
112.52452°
Mean anomaly
112.4082°
Eccentric anomaly
112.46637°
Mean motion
3.66546 °/min
Orbital period
98.21 mins
BSTAR
0.00083213
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Other satellites on launch #15 in the year 1961 (1961-06-29 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.THOR ABLESTAR 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-25 19:15:51.140Z | 332.808° NNW | 2026-06-25 19:19:51.140Z | 149.879° SSE | 44.331° | 2026-06-25 19:23:51.140Z | 153.537° SSE |
| 8 mins | 2026-06-26 09:34:51.140Z | 195.36° SSW | 2026-06-26 09:38:51.140Z | 78.719° E | 42.24° | 2026-06-26 09:42:51.140Z | 32.776° NE |
| 4 mins | 2026-06-26 11:17:51.140Z | 286.942° WNW | 2026-06-26 11:19:51.140Z | 315.165° NNW | 15.376° | 2026-06-26 11:21:51.140Z | 342.547° N |
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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