THORAD DELTA 1 DEB, 8139
Orbit data source: Space-Track
THORAD DELTA 1 DEB, 8139 is space debris in SSO originally from a launch on Fri, 15 Nov 1974 UTC launched from the Air Force Western Test Range (AFWTR). 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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8139 intel report (Beta)
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Edit Public Description
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, 0.5 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 THORAD DELTA 1 DEB
1 8139U 74089H 25330.83728161 .00000028 00000-0 40685-3 0 9994
2 8139 101.5887 291.6529 0050422 52.6684 15.3206 12.61931028349580Epoch: 2025-11-26T20:05Z
TLE epoch observation values (Epoch: 2025-11-26T20:05:41.131Z)
Latitude
65.47867°
Longitude
-102.34195°
Altitude
1,388.238 km
Speed
7.189 km/s
True Right ascension
17h 40m 19s
True Declination
65° 21' 33"
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
00:40:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,451.788 km
Perigee altitude
1,373.224 km
Semi-major axis
7,790.643 km
Eccentricity
0.00504
Inclination
101.5887°
RAAN
291.6529°
Arg. of periapsis
52.6684°
True anomaly
15.4742°
Mean anomaly
15.3206°
Eccentric anomaly
15.39731°
Mean motion
3.15634 °/min
Orbital period
114.06 mins
BSTAR
0.00040685
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Other satellites on launch #89 in the year 1974 (1974-11-15 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.THORAD DELTA 1 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-11-28 08:34:44.533Z | 62.509° ENE | 2025-11-28 08:38:44.533Z | 92.9° ESE | 13.277° | 2025-11-28 08:41:44.533Z | 115.355° SE |
| 14 mins | 2025-11-28 10:24:44.533Z | 20.734° NNE | 2025-11-28 10:31:44.533Z | 130.564° SE | 44.339° | 2025-11-28 10:38:44.533Z | 192.945° SSW |
| 10 mins | 2025-11-28 12:17:44.533Z | 348.319° N | 2025-11-28 12:22:44.533Z | 304.661° NW | 22.156° | 2025-11-28 12:27:44.533Z | 261.798° W |
| 8 mins | 2025-11-28 19:30:44.533Z | 83.867° E | 2025-11-28 19:33:44.533Z | 57.325° ENE | 19.303° | 2025-11-28 19:38:44.533Z | 14.276° NNE |
| 14 mins | 2025-11-28 21:18:44.533Z | 161.659° S | 2025-11-28 21:25:44.533Z | 331.196° NNW | 44.661° | 2025-11-28 21:32:44.533Z | 342.535° N |
| 6 mins | 2025-11-28 23:15:44.533Z | 247.917° W | 2025-11-28 23:18:44.533Z | 273.258° WNW | 15.283° | 2025-11-28 23:21:44.533Z | 297.461° NW |
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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