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, 1.8 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 26295.81767767 .00000014 00000-0 35618-5 0 9997
2 21656 82.5505 37.0448 0025783 108.4632 11.1554 13.20285032692259Epoch: 2026-10-22T19:37Z
TLE epoch observation values (Epoch: 2026-10-22T19:37:27.350Z)
Latitude
59.57787°
Longitude
-121.36577°
Altitude
1,174.588 km
Speed
7.281 km/s
True Right ascension
13h 36m 58s
True Declination
59° 26' 09"
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
23:18:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,200.361 km
Perigee altitude
1,161.382 km
Semi-major axis
7,559.009 km
Eccentricity
0.00258
Inclination
82.5505°
RAAN
37.0448°
Arg. of periapsis
108.4632°
True anomaly
11.21274°
Mean anomaly
11.1554°
Eccentric anomaly
11.18405°
Mean motion
3.30252 °/min
Orbital period
109.01 mins
BSTAR
0.0000035618
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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 | 2026-10-23 06:04:02.385Z | 118.759° SE | 2026-10-23 06:08:02.385Z | 84.046° E | 17.946° | 2026-10-23 06:12:02.385Z | 47.136° ENE |
| 12 mins | 2026-10-23 07:52:02.385Z | 194.842° SSW | 2026-10-23 07:57:02.385Z | 248.526° W | 73.282° | 2026-10-23 08:04:02.385Z | 3.769° NNE |
| 4 mins | 2026-10-23 09:47:02.385Z | 284.466° WNW | 2026-10-23 09:49:02.385Z | 301.567° NW | 12.163° | 2026-10-23 09:51:02.385Z | 318.241° NNW |
| 9 mins | 2026-10-23 17:28:02.385Z | 28.075° NE | 2026-10-23 17:32:02.385Z | 71.342° E | 25.503° | 2026-10-23 17:37:02.385Z | 120.102° SE |
| 12 mins | 2026-10-23 19:17:02.385Z | 339.551° N | 2026-10-23 19:22:02.385Z | 275.544° WNW | 55.962° | 2026-10-23 19:29:02.385Z | 193.118° 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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