SL-12 R/B(2), 18578

Orbit data source: Space-Track

SL-12 R/B(2), 18578 is space debris in GEO originally from a launch on Thu, 26 Nov 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/18578?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18578, 1987-096D

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)

1987-11-26 (38 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.1 m

Radar Cross Section

23.597 m², Large (>1 m²)

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Last TLE update: 18 hours ago

TLE from 18 hours ago

0 SL-12 R/B(2)
1 18578U 87096D   25286.51329154 -.00000327  00000-0  00000-0 0  9995
2 18578  11.1641 327.7662 0024150 240.8389 128.6484  1.00562931135553

Epoch: 2025-10-13T12:19Z

TLE epoch observation values (Epoch: 2025-10-13T12:19:08.389Z)

Latitude

1.87845°

Longitude

130.18661°

Altitude

35,768.451 km

Speed

3.073 km/s

True Right ascension

22h 29m 08s

True Declination

1° 52' 36"

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

00:46:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,807.82 km

Perigee altitude

35,604.553 km

Semi-major axis

42,084.324 km

Eccentricity

0.00242

Inclination

11.1641°

RAAN

327.7662°

Arg. of periapsis

240.8389°

True anomaly

128.86412°

Mean anomaly

128.6484°

Eccentric anomaly

128.7563°

Mean motion

0.2514 °/min

Orbital period

1,431.99 mins

BSTAR

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Other satellites on launch #96 in the year 1987 (1987-11-26 UTC)

SL-12 R/B(1), 18576 (Decayed)

SL-12 R/B(AUX MOTOR), 18579 (Decayed)

COSMOS 1897 DEB, 44572

COSMOS 1897, 18575

SL-12 R/B(AUX MOTOR), 18580 (Decayed)

SL-12 PLAT, 18577 (Decayed)

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SL-12 R/B(2) Visibility

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18578 neighbors

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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), 18578 on other resources

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View SL-12 R/B(2), 18578 on Celestrak

View SL-12 R/B(2), 18578 on Gunter's Space Page

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SL-12 R/B(2), 18578

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2025-10-13T12:19:08.389Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #96 in the year 1987 (1987-11-26 UTC)

SL-12 R/B(2) Visibility

18578 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 18578 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 18 hours ago