SL-14 R/B, 21785
Orbit data source: Space-Track
SL-14 R/B, 21785 is space debris in LEO originally from a launch on Tue, 12 Nov 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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21785 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Yuzhnoe
Mission
Spacecraft
Bus & Motor
S5M, Unknown motor
Mass
1,600 kg wet, 1,600 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 1.4 m
Radar Cross Section
7.351 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 SL-14 R/B
1 21785U 91077G 25260.90058777 -.00000007 00000-0 -10482-3 0 9992
2 21785 82.6019 177.1603 0037357 278.6833 150.0185 12.55088270550602Epoch: 2025-09-17T21:36Z
TLE epoch observation values (Epoch: 2025-09-17T21:36:50.783Z)
Latitude
67.78527°
Longitude
-125.677°
Altitude
1,480.328 km
Speed
7.118 km/s
True Right ascension
13h 02m 25s
True Declination
67° 40' 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
23:30:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,469.822 km
Perigee altitude
1,411.405 km
Semi-major axis
7,818.751 km
Eccentricity
0.00374
Inclination
82.6019°
RAAN
177.1603°
Arg. of periapsis
278.6833°
True anomaly
150.23156°
Mean anomaly
150.0185°
Eccentric anomaly
150.12511°
Mean motion
3.13933 °/min
Orbital period
114.67 mins
BSTAR
-0.00010482
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Other satellites on launch #77 in the year 1991 (1991-11-12 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-14 R/B 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-09-18 07:26:04.147Z | 337.482° NNW | 2025-09-18 07:34:04.147Z | 266.377° W | 32.468° | 2025-09-18 07:41:04.147Z | 209.442° SW |
| 14 mins | 2025-09-18 18:24:04.147Z | 152.039° SSE | 2025-09-18 18:30:04.147Z | 91.637° ESE | 35.783° | 2025-09-18 18:38:04.147Z | 19.656° NNE |
| 13 mins | 2025-09-18 20:20:04.147Z | 229.309° WSW | 2025-09-18 20:26:04.147Z | 288.329° WNW | 31.329° | 2025-09-18 20:33:04.147Z | 350.341° N |
| 9 mins | 2025-09-19 04:30:04.147Z | 30.56° NE | 2025-09-19 04:34:04.147Z | 62.444° ENE | 18.458° | 2025-09-19 04:39:04.147Z | 101.599° ESE |
| 15 mins | 2025-09-19 06:24:04.147Z | 351.319° N | 2025-09-19 06:31:04.147Z | 254.057° W | 44.928° | 2025-09-19 06:39:04.147Z | 177.156° S |
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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