SL-14 R/B, 21656
Orbit data source: Space-Track
SL-14 R/B, 21656 is space debris in LEO originally from a launch on Thu, 15 Aug 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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21656 intel report (Beta)
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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 21656U 91056B 26112.10395794 .00000010 00000-0 -57996-5 0 9994
2 21656 82.5489 167.7562 0024167 208.1782 178.1975 13.20281306668015Epoch: 2026-04-22T02:29Z
TLE epoch observation values (Epoch: 2026-04-22T02:29:41.966Z)
Latitude
26.1769°
Longitude
-76.17151°
Altitude
1,205.018 km
Speed
7.245 km/s
True Right ascension
11h 25m 41s
True Declination
26° 02' 56"
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
18:42:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,199.154 km
Perigee altitude
1,162.618 km
Semi-major axis
7,559.023 km
Eccentricity
0.00242
Inclination
82.5489°
RAAN
167.7562°
Arg. of periapsis
208.1782°
True anomaly
178.20618°
Mean anomaly
178.1975°
Eccentric anomaly
178.20184°
Mean motion
3.30251 °/min
Orbital period
109.01 mins
BSTAR
-0.0000057996
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Other satellites on launch #56 in the year 1991 (1991-08-15 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-04-22 13:52:54.503Z | 27.551° NE | 2026-04-22 13:56:54.503Z | 62.302° ENE | 16.407° | 2026-04-22 14:00:54.503Z | 98.796° ESE |
| 13 mins | 2026-04-22 15:41:54.503Z | 350.311° N | 2026-04-22 15:47:54.503Z | 284.396° WNW | 44.734° | 2026-04-22 15:54:54.503Z | 178.249° S |
| 12 mins | 2026-04-23 03:55:54.503Z | 166.282° S | 2026-04-23 04:01:54.503Z | 80.608° E | 40.688° | 2026-04-23 04:07:54.503Z | 16.587° NNE |
| 9 mins | 2026-04-23 05:47:54.503Z | 248.68° W | 2026-04-23 05:51:54.503Z | 289.653° WNW | 22.763° | 2026-04-23 05:56:54.503Z | 338.381° N |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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