SL-14 R/B, 21305
Orbit data source: Space-Track
SL-14 R/B, 21305 is space debris in LEO originally from a launch on Thu, 16 May 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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21305 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: 5 hours ago
TLE from 5 hours ago
0 SL-14 R/B
1 21305U 91033G 25273.65040903 .00000023 00000-0 81585-4 0 9999
2 21305 82.5642 231.8096 0036893 245.7478 287.7121 12.54823182574443Epoch: 2025-09-30T15:36Z
TLE epoch observation values (Epoch: 2025-09-30T15:36:35.340Z)
Latitude
6.81571°
Longitude
167.13623°
Altitude
1,437.796 km
Speed
7.147 km/s
True Right ascension
03h 23m 40s
True Declination
6° 46' 44"
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
14:45:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,470.567 km
Perigee altitude
1,412.868 km
Semi-major axis
7,819.854 km
Eccentricity
0.00369
Inclination
82.5642°
RAAN
231.8096°
Arg. of periapsis
245.7478°
True anomaly
287.30882°
Mean anomaly
287.7121°
Eccentric anomaly
287.51051°
Mean motion
3.13867 °/min
Orbital period
114.7 mins
BSTAR
0.000081585
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Other satellites on launch #33 in the year 1991 (1991-05-16 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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2025-09-30 22:25:22.353Z | 196.993° SSW | 2025-09-30 22:33:22.353Z | 273.654° WNW | 43.085° | 2025-09-30 22:41:22.353Z | 2.315° NNE |
| 5 mins | 2025-10-01 00:29:22.353Z | 289.702° WNW | 2025-10-01 00:31:22.353Z | 304.373° NW | 12.655° | 2025-10-01 00:34:22.353Z | 325.432° NNW |
| 14 mins | 2025-10-01 08:32:22.353Z | 5.968° NNE | 2025-10-01 08:38:22.353Z | 65.954° ENE | 38.458° | 2025-10-01 08:46:22.353Z | 151.012° SSE |
| 12 mins | 2025-10-01 10:28:22.353Z | 327.479° NNW | 2025-10-01 10:34:22.353Z | 272.456° WNW | 27.776° | 2025-10-01 10:40:22.353Z | 221.459° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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