SL-8 DEB, 21943
Orbit data source: Space-Track
SL-8 DEB, 21943 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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21943 intel report (Beta)
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Identifier
Orbit
Country
CISRelated 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
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 SL-8 DEB
1 21943U 91009CE 26070.95538230 -.00000007 00000-0 76145-4 0 9993
2 21943 73.9507 250.4601 0137395 209.3484 306.7007 12.19264912558163Epoch: 2026-03-11T22:55Z
TLE epoch observation values (Epoch: 2026-03-11T22:55:45.030Z)
Latitude
24.20735°
Longitude
-90.48421°
Altitude
1,533.64 km
Speed
7.13 km/s
True Right ascension
04h 12m 15s
True Declination
24° 05' 30"
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
10:33:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,703.149 km
Perigee altitude
1,484.093 km
Semi-major axis
7,971.758 km
Eccentricity
0.01374
Inclination
73.9507°
RAAN
250.4601°
Arg. of periapsis
209.3484°
True anomaly
305.42539°
Mean anomaly
306.7007°
Eccentric anomaly
306.06435°
Mean motion
3.04938 °/min
Orbital period
118.06 mins
BSTAR
0.000076145
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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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2026-03-12 11:56:26.350Z | 158.158° S | 2026-03-12 12:04:26.350Z | 96.678° ESE | 32.511° | 2026-03-12 12:12:26.350Z | 35.138° NE |
| 17 mins | 2026-03-12 13:56:26.350Z | 224.034° SW | 2026-03-12 14:04:26.350Z | 289.86° WNW | 38.261° | 2026-03-12 14:13:26.350Z | 9.711° NNE |
| 6 mins | 2026-03-12 16:05:26.350Z | 304.103° NW | 2026-03-12 16:08:26.350Z | 323.185° NNW | 12.771° | 2026-03-12 16:11:26.350Z | 342.202° N |
| 4 mins | 2026-03-12 20:21:26.350Z | 24.481° NE | 2026-03-12 20:23:26.350Z | 37.589° NE | 11.507° | 2026-03-12 20:25:26.350Z | 50.699° ENE |
| 15 mins | 2026-03-12 22:19:26.350Z | 353.523° N | 2026-03-12 22:26:26.350Z | 56.458° ENE | 37.077° | 2026-03-12 22:34:26.350Z | 133.91° SE |
| 14 mins | 2026-03-13 00:20:26.350Z | 321.326° NNW | 2026-03-13 00:27:26.350Z | 258.445° W | 31.601° | 2026-03-13 00:34:26.350Z | 201.938° SSW |
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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