SL-12 R/B(2), 12850

Orbit data source: Space-Track

SL-12 R/B(2), 12850 is space debris in GEO originally from a launch on Thu, 30 Jul 1981 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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.

Not visible in the next 10 days

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Iframe URL

https://www.satcat.com/sats-embedded/12850?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12850, 1981-069F

Orbit

GEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK DM, Unknown motor

Mass

2,440 kg wet, 2,440 kg dry

Launch date (UTC)

1981-07-30 (44 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-12 R/B(2)
1 12850U 81069F   25312.49597757 -.00000035  00000-0  00000+0 0  9994
2 12850   8.6516 301.4785 0021057 187.5607 159.3630  0.97699219114062

Epoch: 2025-11-08T11:54Z

TLE epoch observation values (Epoch: 2025-11-08T11:54:12.462Z)

Latitude

-1.93382°

Longitude

62.11604°

Altitude

36,607.529 km

Speed

3.042 km/s

True Right ascension

19h 14m 22s

True Declination

-1° 55' 55"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

16:36:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,614.916 km

Perigee altitude

36,434.235 km

Semi-major axis

42,902.713 km

Eccentricity

0.00211

Inclination

8.6516°

RAAN

301.4785°

Arg. of periapsis

187.5607°

True anomaly

159.44783°

Mean anomaly

159.363°

Eccentric anomaly

159.40544°

Mean motion

0.24424 °/min

Orbital period

1,473.96 mins

BSTAR

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Other satellites on launch #69 in the year 1981 (1981-07-30 UTC)

SL-12 R/B(AUX MOTOR), 12634 (Decayed)

RADUGA 9, 12618

SL-12 R/B(1), 12619 (Decayed)

SL-12 R/B(AUX MOTOR), 12633 (Decayed)

SL-12 PLAT, 12620 (Decayed)

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SL-12 R/B(2) Visibility

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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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Check out SL-12 R/B(2), 12850 on other resources

View SL-12 R/B(2), 12850 on Heavens-Above

View SL-12 R/B(2), 12850 on Keep Track

View SL-12 R/B(2), 12850 on Celestrak

View SL-12 R/B(2), 12850 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SL-12 R/B(2), 12850

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2025-11-08T11:54:12.462Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #69 in the year 1981 (1981-07-30 UTC)

SL-12 R/B(2) Visibility

12850 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 12850 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago