SL-12 R/B(2), 18634

Orbit data source: Space-Track

SL-12 R/B(2), 18634 is space debris in GEO originally from a launch on Thu, 10 Dec 1987 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/18634?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

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ISO8601 Format

Identifier

18634, 1987-100D

Orbit

GEO

Last TLE update

13 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)

1987-12-10 (37 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 13 hours ago

0 SL-12 R/B(2)
1 18634U 87100D   25133.80462375 -.00000039  00000-0  00000-0 0  9990
2 18634  10.3651 322.6164 0016052 257.6081 283.1026  1.03399854141344

Epoch: 2025-05-13T19:18Z

Definitive object data (Epoch: 2025-05-13T19:18:39.492Z)

Latitude

-0.1097°

Longitude

-18.33487°

Altitude

34,916.531 km

Speed

3.107 km/s

True Right ascension

09h 32m 30s

True Declination

0° 06' 35"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

4.14274°

Longitude

-175.65138°

Altitude

34,969.866 km

Speed

3.103 km/s

Apparent Right ascension

23h 30m 08s

Apparent Declination

-1° 29' 25"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

16:51:38

Azimuth

84.937° E

Elevation

-8.332°

Doppler factor

Orbital elements

Apogee altitude

34,999.218 km

Perigee altitude

34,866.593 km

Semi-major axis

41,311.042 km

Eccentricity

0.0016052

Inclination

10.3651°

RAAN

322.6164°

Arg. of periapsis

257.6081°

True anomaly

282.92337°

Mean anomaly

283.1026°

Eccentric anomaly

283.01299°

Mean motion

0.25849 °/min

BSTAR

Unknown

Orbital period

1392.7 mins

Loading historical data...

18634 neighbors

Authenticating...

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Other satellites on launch #100 in the year 1987 (1987-12-10 UTC)

RADUGA 21, 18631

SL-12 R/B(1), 18632 (Decayed)

SL-12 PLAT, 18633 (Decayed)

SL-12 R/B(AUX MOTOR), 18635 (Decayed)

SL-12 R/B(AUX MOTOR), 18636 (Decayed)

SL-12 DEB *, 21620 (Decayed)

SL-12 R/B(2) Visibility forecast

Observer location: undefined°, undefined°

SL-12 R/B(2) is not visible in the next 10 days

Authenticating...

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Check out SL-12 R/B(2), 18634 on other resources

View SL-12 R/B(2), 18634 on Heavens-Above

View SL-12 R/B(2), 18634 on Keep Track

View SL-12 R/B(2), 18634 on Celestrak

View SL-12 R/B(2), 18634 on Gunter's Space Page

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