THOR ABLESTAR DEB, 261
Orbit data source: Space-Track
THOR ABLESTAR DEB, 261 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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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: 2 days ago
TLE from 2 days ago
0 THOR ABLESTAR DEB
1 00261U 61015CH 26153.23182410 .00000149 00000-0 14750-3 0 9994
2 00261 66.6809 89.7044 0090428 340.1165 19.6401 14.01042844309990Epoch: 2026-06-02T05:33Z
TLE epoch observation values (Epoch: 2026-06-02T05:33:49.602Z)
Latitude
-0.00002°
Longitude
115.53996°
Altitude
830.422 km
Speed
7.47 km/s
True Right ascension
05h 58m 49s
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
02:51:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
954.297 km
Perigee altitude
822.874 km
Semi-major axis
7,266.722 km
Eccentricity
0.00904
Inclination
66.6809°
RAAN
89.7044°
Arg. of periapsis
340.1165°
True anomaly
19.99213°
Mean anomaly
19.6401°
Eccentric anomaly
19.81574°
Mean motion
3.50377 °/min
Orbital period
102.75 mins
BSTAR
0.0001475
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-04 19:22:34.098Z | 128.594° SE | 2026-06-04 19:24:34.098Z | 107.507° ESE | 12.899° | 2026-06-04 19:27:34.098Z | 75.501° E |
| 10 mins | 2026-06-04 21:05:34.098Z | 212.323° SW | 2026-06-04 21:09:34.098Z | 256.241° W | 44.469° | 2026-06-04 21:15:34.098Z | 27.589° NE |
| 5 mins | 2026-06-04 22:54:34.098Z | 298.215° NW | 2026-06-04 22:56:34.098Z | 321.583° NNW | 15.335° | 2026-06-04 22:59:34.098Z | 353.783° N |
| 7 mins | 2026-06-05 04:20:34.098Z | 10.252° NNE | 2026-06-05 04:23:34.098Z | 44.387° NE | 17.805° | 2026-06-05 04:27:34.098Z | 85.097° E |
| 10 mins | 2026-06-05 06:05:34.098Z | 331.063° NNW | 2026-06-05 06:09:34.098Z | 332.516° NNW | 44.688° | 2026-06-05 06:15:34.098Z | 152.547° SSE |
| 4 mins | 2026-06-05 07:53:34.098Z | 269.916° W | 2026-06-05 07:54:34.098Z | 259.598° W | 13.264° | 2026-06-05 07:57:34.098Z | 230.379° 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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