SL-8 DEB, 21175
Orbit data source: Space-Track
SL-8 DEB, 21175 is space debris in LEO originally from a launch on Tue, 12 Feb 1991 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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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21175 intel report (Beta)
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Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 SL-8 DEB
1 21175U 91009AN 26071.06087310 -.00000013 00000-0 24945-4 0 9999
2 21175 73.9357 300.1124 0147301 244.6176 238.1080 12.28583556570480Epoch: 2026-03-12T01:27Z
TLE epoch observation values (Epoch: 2026-03-12T01:27:39.435Z)
Latitude
55.28577°
Longitude
-95.95217°
Altitude
1,627.108 km
Speed
7.035 km/s
True Right ascension
06h 22m 42s
True Declination
55° 08' 32"
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
16:40:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,670.07 km
Perigee altitude
1,436.41 km
Semi-major axis
7,931.377 km
Eccentricity
0.01473
Inclination
73.9357°
RAAN
300.1124°
Arg. of periapsis
244.6176°
True anomaly
236.68881°
Mean anomaly
238.108°
Eccentric anomaly
237.39702°
Mean motion
3.0727 °/min
Orbital period
117.16 mins
BSTAR
0.000024945
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Other satellites on launch #9 in the year 1991 (1991-02-12 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.SL-8 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-03-12 14:34:17.357Z | 133.421° SE | 2026-03-12 14:41:17.357Z | 85.499° E | 20.047° | 2026-03-12 14:47:17.357Z | 46.297° ENE |
| 17 mins | 2026-03-12 16:31:17.357Z | 200.732° SSW | 2026-03-12 16:39:17.357Z | 295.295° NW | 44.826° | 2026-03-12 16:48:17.357Z | 17.919° NNE |
| 12 mins | 2026-03-12 18:35:17.357Z | 273.836° WNW | 2026-03-12 18:40:17.357Z | 309.796° NW | 20.357° | 2026-03-12 18:47:17.357Z | 357.639° N |
| 14 mins | 2026-03-13 00:50:17.357Z | 0.716° NNE | 2026-03-13 00:57:17.357Z | 54.421° ENE | 25.835° | 2026-03-13 01:04:17.357Z | 108.187° ESE |
| 16 mins | 2026-03-13 02:50:17.357Z | 335.165° NNW | 2026-03-13 02:57:17.357Z | 276.213° WNW | 43.252° | 2026-03-13 03:06:17.357Z | 174.635° S |
| 4 mins | 2026-03-13 04:54:17.357Z | 283.701° WNW | 2026-03-13 04:55:17.357Z | 277.016° WNW | 11.884° | 2026-03-13 04:58:17.357Z | 257.166° W |
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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