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: 7 hours ago
TLE from 7 hours ago
0 THOR ABLESTAR DEB
1 561U 61015GT 26048.45049444 .00000148 00000-0 71492-3 0 9998
2 561 67.7523 191.5170 0627825 19.6802 35.0965 12.41450001926265Epoch: 2026-02-17T10:48Z
TLE epoch observation values (Epoch: 2026-02-17T10:48:42.719Z)
Latitude
52.76464°
Longitude
-85.71682°
Altitude
1,114.625 km
Speed
7.481 km/s
True Right ascension
14h 55m 33s
True Declination
52° 36' 24"
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
20:50:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,993.403 km
Perigee altitude
1,004.327 km
Semi-major axis
7,877.002 km
Eccentricity
0.06278
Inclination
67.7523°
RAAN
191.517°
Arg. of periapsis
19.6802°
True anomaly
39.51149°
Mean anomaly
35.0965°
Eccentric anomaly
37.2751°
Mean motion
3.10457 °/min
Orbital period
115.96 mins
BSTAR
0.00071492
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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 | 2026-02-17 18:45:45.087Z | 347.014° N | 2026-02-17 18:53:45.087Z | 52.873° ENE | 28.34° | 2026-02-17 19:01:45.087Z | 107.082° ESE |
| 18 mins | 2026-02-17 20:45:45.087Z | 327.178° NNW | 2026-02-17 20:53:45.087Z | 233.388° WSW | 43.704° | 2026-02-17 21:03:45.087Z | 165.217° S |
| 8 mins | 2026-02-17 22:48:45.087Z | 282.026° WNW | 2026-02-17 22:51:45.087Z | 262.545° W | 15.15° | 2026-02-17 22:56:45.087Z | 233.348° WSW |
| 8 mins | 2026-02-18 09:51:45.087Z | 147.806° SSE | 2026-02-18 09:54:45.087Z | 109.447° ESE | 25.291° | 2026-02-18 09:59:45.087Z | 52.77° ENE |
| 10 mins | 2026-02-18 11:49:45.087Z | 243.637° WSW | 2026-02-18 11:53:45.087Z | 304.041° NW | 35.048° | 2026-02-18 11:59:45.087Z | 15.513° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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