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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/12850?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

12850, 1981-069F

Orbit

GEO

Last TLE update

21 hours ago

Origin

Russian Strategic Rocket Forces (CIS)

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

Cyl, 6.27 m

Radar Cross Section

23.597 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 21 hours ago

0 SL-12 R/B(2)
1 12850U 81069F   25181.53495297 -.00000130  00000-0  00000-0 0  9996
2 12850   8.9483 302.5324 0022395 181.0853 182.2566  0.97701022112794

Epoch: 2025-06-30T12:50Z

TLE epoch observation values (Epoch: 2025-06-30T12:50:19.936Z)

Latitude

0.50321°

Longitude

-165.60822°

Altitude

36,618.758 km

Speed

3.041 km/s

True Right ascension

20h 23m 16s

True Declination

0° 30' 10"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-7.21194°

Longitude

137.85069°

Altitude

36,579.543 km

Speed

3.044 km/s

Apparent Right ascension

16h 11m 42s

Apparent Declination

-12° 58' 59"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:08:33

Azimuth

249.94° W

Elevation

3.391°

Doppler factor

Orbital elements

Apogee altitude

36,620.125 km

Perigee altitude

36,427.966 km

Semi-major axis

42,902.182 km

Eccentricity

0.00224

Inclination

8.9483°

RAAN

302.5324°

Arg. of periapsis

181.0853°

True anomaly

Unknown

Mean anomaly

182.2566°

Eccentric anomaly

Unknown

Mean motion

0.24424 °/min

Orbital period

1,473.94 mins

BSTAR

Loading historical data...

12850 neighbors

Authenticating...

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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

RADUGA 9, 12618

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

SL-12 PLAT, 12620 (Decayed)

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

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

SL-12 R/B(2) Visibility forecast

Observer location: undefined°, undefined°

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.
233 mins	2025-07-01 16:51:16.201Z	263.787° W	2025-07-01 18:56:16.201Z	265.57° W	10.619°	2025-07-01 20:44:16.201Z	265.39° W

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

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.