THOR ABLESTAR DEB, 561
Orbit data source: Space-Track
THOR ABLESTAR DEB, 561 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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561 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: 14 hours ago
TLE from 14 hours ago
0 THOR ABLESTAR DEB
1 561U 61015GT 26138.13779730 .00000521 00000-0 20778-2 0 9996
2 561 67.7575 28.7911 0630701 318.5923 198.4461 12.41528397937393Epoch: 2026-05-18T03:18Z
TLE epoch observation values (Epoch: 2026-05-18T03:18:25.686Z)
Latitude
23.13352°
Longitude
-86.66201°
Altitude
1,976.319 km
Speed
6.699 km/s
True Right ascension
13h 15m 06s
True Declination
23° 01' 39"
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
02:01:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,995.315 km
Perigee altitude
1,001.75 km
Semi-major axis
7,876.67 km
Eccentricity
0.06307
Inclination
67.7575°
RAAN
28.7911°
Arg. of periapsis
318.5923°
True anomaly
196.3193°
Mean anomaly
198.4461°
Eccentric anomaly
197.36743°
Mean motion
3.10477 °/min
Orbital period
115.95 mins
BSTAR
0.0020778
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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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2026-05-18 18:00:22.933Z | 194.955° SSW | 2026-05-18 18:07:22.933Z | 104.075° ESE | 43.779° | 2026-05-18 18:16:22.933Z | 30.985° NE |
| 13 mins | 2026-05-18 20:02:22.933Z | 268.984° W | 2026-05-18 20:07:22.933Z | 314.593° NW | 26.978° | 2026-05-18 20:15:22.933Z | 14.341° NNE |
| 7 mins | 2026-05-18 22:09:22.933Z | 334.973° NNW | 2026-05-18 22:11:22.933Z | 347.557° N | 13.067° | 2026-05-18 22:16:22.933Z | 16.333° NNE |
| 11 mins | 2026-05-19 00:12:22.933Z | 353.699° N | 2026-05-19 00:17:22.933Z | 23.815° NE | 16.512° | 2026-05-19 00:23:22.933Z | 57.162° ENE |
| 20 mins | 2026-05-19 02:11:22.933Z | 343.388° N | 2026-05-19 02:20:22.933Z | 47.857° ENE | 35.07° | 2026-05-19 02:31:22.933Z | 119.504° SE |
| 20 mins | 2026-05-19 04:11:22.933Z | 324.443° NNW | 2026-05-19 04:20:22.933Z | 258.394° W | 41.544° | 2026-05-19 04:31:22.933Z | 174.18° S |
| 7 mins | 2026-05-19 06:15:22.933Z | 284.27° WNW | 2026-05-19 06:18:22.933Z | 268.104° W | 12.966° | 2026-05-19 06:22:22.933Z | 246.934° 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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