SL-8 R/B, 12508
Orbit data source: Space-Track
SL-8 R/B, 12508 is space debris in LEO originally from a launch on Thu, 04 Jun 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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12508 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Omsk Av. Zav.
Mission
Spacecraft
Bus & Motor
S3, Unknown motor
Mass
1,434 kg wet, 1,434 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 SL-8 R/B
1 12508U 81053B 26034.31439532 .00000079 00000-0 64474-4 0 9993
2 12508 82.9618 327.0007 0038219 28.3576 331.9650 13.76630465248995Epoch: 2026-02-03T07:32Z
TLE epoch observation values (Epoch: 2026-02-03T07:32:43.755Z)
Latitude
-0.00003°
Longitude
80.32128°
Altitude
953.975 km
Speed
7.387 km/s
True Right ascension
21h 48m 00s
True Declination
0° 00' 00"
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
22:35:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,001.104 km
Perigee altitude
944.913 km
Semi-major axis
7,351.145 km
Eccentricity
0.00382
Inclination
82.9618°
RAAN
327.0007°
Arg. of periapsis
28.3576°
True anomaly
331.75828°
Mean anomaly
331.965°
Eccentric anomaly
331.86173°
Mean motion
3.44358 °/min
Orbital period
104.54 mins
BSTAR
0.000064474
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Other satellites on launch #53 in the year 1981 (1981-06-04 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SL-8 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-02-03 21:39:16.300Z | 253.58° W | 2026-02-03 21:43:16.300Z | 297.12° NW | 16.785° | 2026-02-03 21:46:16.300Z | 328.51° NNW |
| 10 mins | 2026-02-04 06:49:16.300Z | 9.707° NNE | 2026-02-04 06:53:16.300Z | 71.439° E | 38.191° | 2026-02-04 06:59:16.300Z | 154.087° SSE |
| 7 mins | 2026-02-04 08:35:16.300Z | 313.222° NW | 2026-02-04 08:38:16.300Z | 277.967° WNW | 21.024° | 2026-02-04 08:42:16.300Z | 232.983° WSW |
| 4 mins | 2026-02-04 18:36:16.300Z | 97.176° ESE | 2026-02-04 18:37:16.300Z | 85.988° E | 15.17° | 2026-02-04 18:40:16.300Z | 53.587° ENE |
| 10 mins | 2026-02-04 20:18:16.300Z | 198.935° SSW | 2026-02-04 20:22:16.300Z | 274.803° WNW | 43.07° | 2026-02-04 20:28:16.300Z | 2.054° NNE |
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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