SL-12 R/B(2), 18387

Orbit data source: Space-Track

SL-12 R/B(2), 18387 is space debris in GEO originally from a launch on Thu, 01 Oct 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/18387?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

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ISO8601 Format

Identifier

18387, 1987-084D

Orbit

GEO

Last TLE update

10 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)

1987-10-01 (38 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 10 hours ago

0 SL-12 R/B(2)
1 18387U 87084D   25196.49238354  .00000110  00000-0  00000-0 0  9997
2 18387  11.4182 328.8459 0029651 239.8075 288.0292  1.00047091145409

Epoch: 2025-07-15T11:49Z

TLE epoch observation values (Epoch: 2025-07-15T11:49:01.937Z)

Latitude

2.47031°

Longitude

25.74633°

Altitude

35,810.827 km

Speed

3.075 km/s

True Right ascension

09h 06m 21s

True Declination

2° 28' 04"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-7.62543°

Longitude

176.61289°

Altitude

35,824.675 km

Speed

3.074 km/s

Apparent Right ascension

19h 28m 26s

Apparent Declination

-12° 03' 49"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

10:23:49

Azimuth

66.663° ENE

Elevation

-42.458°

Doppler factor

Orbital elements

Apogee altitude

35,975.923 km

Perigee altitude

35,725.498 km

Semi-major axis

42,228.847 km

Eccentricity

0.00297

Inclination

11.4182°

RAAN

328.8459°

Arg. of periapsis

239.8075°

True anomaly

Unknown

Mean anomaly

288.0292°

Eccentric anomaly

Unknown

Mean motion

0.25011 °/min

Orbital period

1,439.37 mins

BSTAR

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18387 neighbors

Authenticating...

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Other satellites on launch #84 in the year 1987 (1987-10-01 UTC)

COSMOS 1888, 18384

SL-12 R/B(1), 18385 (Decayed)

SL-12 PLAT, 18386 (Decayed)

SL-12 R/B(AUX MOTOR), 18388 (Decayed)

SL-12 R/B(AUX MOTOR), 18420 (Decayed)

SL-12 R/B(2) Visibility

Observer location: undefined°, undefined°

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

Authenticating...

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Check out SL-12 R/B(2), 18387 on other resources

View SL-12 R/B(2), 18387 on Heavens-Above

View SL-12 R/B(2), 18387 on Keep Track

View SL-12 R/B(2), 18387 on Celestrak

View SL-12 R/B(2), 18387 on Gunter's Space Page

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