SL-8 DEB, 21408
Orbit data source: Space-Track
SL-8 DEB, 21408 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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21408 intel report (Beta)
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Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 SL-8 DEB
1 21408U 91009BX 26069.70731779 -.00000007 00000-0 75597-4 0 9993
2 21408 74.0233 71.4160 0204505 234.0706 245.5668 12.16003674553462Epoch: 2026-03-10T16:58Z
TLE epoch observation values (Epoch: 2026-03-10T16:58:32.257Z)
Latitude
58.58397°
Longitude
160.59168°
Altitude
1,689.818 km
Speed
7.004 km/s
True Right ascension
14h 54m 25s
True Declination
58° 26' 55"
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
12:08:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,771.187 km
Perigee altitude
1,444.551 km
Semi-major axis
7,986.006 km
Eccentricity
0.02045
Inclination
74.0233°
RAAN
71.416°
Arg. of periapsis
234.0706°
True anomaly
243.45603°
Mean anomaly
245.5668°
Eccentric anomaly
244.50914°
Mean motion
3.04123 °/min
Orbital period
118.37 mins
BSTAR
0.000075597
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-03-12 08:24:19.817Z | 14.309° NNE | 2026-03-12 08:27:19.817Z | 32.941° NE | 12.643° | 2026-03-12 08:31:19.817Z | 58.587° ENE |
| 17 mins | 2026-03-12 10:23:19.817Z | 350.42° N | 2026-03-12 10:31:19.817Z | 53.899° ENE | 38.002° | 2026-03-12 10:40:19.817Z | 137.395° SSE |
| 15 mins | 2026-03-12 12:25:19.817Z | 322.054° NNW | 2026-03-12 12:32:19.817Z | 264.893° W | 31.321° | 2026-03-12 12:40:19.817Z | 201.891° SSW |
| 16 mins | 2026-03-12 23:41:19.817Z | 151.009° SSE | 2026-03-12 23:48:19.817Z | 98.763° ESE | 30.519° | 2026-03-12 23:57:19.817Z | 34.804° NE |
| 18 mins | 2026-03-13 01:40:19.817Z | 218.695° SW | 2026-03-13 01:49:19.817Z | 298.884° NW | 40.388° | 2026-03-13 01:58:19.817Z | 11.623° NNE |
| 8 mins | 2026-03-13 03:49:19.817Z | 297.934° NW | 2026-03-13 03:52:19.817Z | 316.891° NNW | 14.853° | 2026-03-13 03:57:19.817Z | 348.222° N |
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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