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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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: 11 hours ago
TLE from 11 hours ago
0 SL-8 R/B
1 12508U 81053B 26048.70539745 .00000075 00000-0 61246-4 0 9998
2 12508 82.9612 316.3380 0037312 348.4009 11.6284 13.76632291250979Epoch: 2026-02-17T16:55Z
TLE epoch observation values (Epoch: 2026-02-17T16:55:46.339Z)
Latitude
-0.00005°
Longitude
-85.28664°
Altitude
951.881 km
Speed
7.389 km/s
True Right ascension
21h 05m 21s
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
06:25:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,000.43 km
Perigee altitude
945.573 km
Semi-major axis
7,351.139 km
Eccentricity
0.00373
Inclination
82.9612°
RAAN
316.338°
Arg. of periapsis
348.4009°
True anomaly
11.71498°
Mean anomaly
11.6284°
Eccentric anomaly
11.67165°
Mean motion
3.44359 °/min
Orbital period
104.54 mins
BSTAR
0.000061246
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Other satellites on launch #53 in the year 1981 (1981-06-04 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-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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-02-18 04:00:14.985Z | 41.419° NE | 2026-02-18 04:03:14.985Z | 71.075° E | 13.198° | 2026-02-18 04:05:14.985Z | 90.373° ESE |
| 11 mins | 2026-02-18 05:44:14.985Z | 352.559° N | 2026-02-18 05:49:14.985Z | 188.182° SSW | 44.774° | 2026-02-18 05:55:14.985Z | 175.692° S |
| 8 mins | 2026-02-18 17:29:14.985Z | 132.084° SE | 2026-02-18 17:32:14.985Z | 92.131° ESE | 26.188° | 2026-02-18 17:37:14.985Z | 31.383° NE |
| 10 mins | 2026-02-18 19:13:14.985Z | 221.892° SW | 2026-02-18 19:18:14.985Z | 294.842° NW | 31.433° | 2026-02-18 19:23:14.985Z | 350.581° 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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