SL-6 R/B(2), 12384
Orbit data source: Space-Track
SL-6 R/B(2), 12384 is space debris in HEO originally from a launch on Tue, 31 Mar 1981 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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12384 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO Energiya
Mission
Spacecraft
Bus & Motor
BLOK-L, Unknown motor
Mass
~900 kg wet, ~900 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 1.4 m
Radar Cross Section
7.756 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 SL-6 R/B(2)
1 12384U 81031D 25257.90267357 -.00000181 00000-0 00000-0 0 9992
2 12384 67.4899 88.9781 6233268 5.1954 359.1344 2.03534678330517Epoch: 2025-09-14T21:39Z
TLE epoch observation values (Epoch: 2025-09-14T21:39:50.996Z)
Latitude
-0.00019°
Longitude
129.89383°
Altitude
3,556.817 km
Speed
8.068 km/s
True Right ascension
05h 55m 53s
True Declination
0° 00' 01"
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
19:03:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,315.805 km
Perigee altitude
3,528.472 km
Semi-major axis
26,300.276 km
Eccentricity
0.62333
Inclination
67.4899°
RAAN
88.9781°
Arg. of periapsis
5.1954°
True anomaly
355.23362°
Mean anomaly
359.1344°
Eccentric anomaly
357.703°
Mean motion
0.50887 °/min
Orbital period
707.46 mins
BSTAR
0
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Other satellites on launch #31 in the year 1981 (1981-03-31 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-6 R/B(2) 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. |
|---|---|---|---|---|---|---|---|
| 138 mins | 2025-09-16 02:23:01.753Z | 207.571° SW | 2025-09-16 02:23:01.753Z | 207.571° SW | 33.893° | 2025-09-16 04:41:01.753Z | 224.417° SW |
| 303 mins | 2025-09-16 21:20:01.753Z | 321.317° NNW | 2025-09-16 22:44:01.753Z | 84.182° E | 43.821° | 2025-09-17 02:23:01.753Z | 205.249° SW |
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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