SL-12 R/B(2), 18446

Orbit data source: Space-Track

SL-12 R/B(2), 18446 is space debris in GEO originally from a launch on Wed, 28 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/18446?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18446, 1987-091D

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)

1987-10-28 (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 13 hours ago

0 SL-12 R/B(2)
1 18446U 87091D   25184.67047697 -.00000065  00000-0  00000-0 0  9996
2 18446  11.2841 327.9902 0022069 253.3980 108.4855  1.00251757126517

Epoch: 2025-07-03T16:05Z

TLE epoch observation values (Epoch: 2025-07-03T16:05:29.21Z)

Latitude

0.40836°

Longitude

166.74998°

Altitude

35,820.985 km

Speed

3.072 km/s

True Right ascension

22h 00m 13s

True Declination

0° 24' 29"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-4.59601°

Longitude

8.4106°

Altitude

35,731.981 km

Speed

3.079 km/s

Apparent Right ascension

11h 00m 11s

Apparent Declination

-10° 00' 26"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

17:22:45

Azimuth

265.848° W

Elevation

-10.707°

Doppler factor

Orbital elements

Apogee altitude

35,886.289 km

Perigee altitude

35,700.153 km

Semi-major axis

42,171.358 km

Eccentricity

0.00221

Inclination

11.2841°

RAAN

327.9902°

Arg. of periapsis

253.398°

True anomaly

Unknown

Mean anomaly

108.4855°

Eccentric anomaly

Unknown

Mean motion

0.25062 °/min

Orbital period

1,436.43 mins

BSTAR

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18446 neighbors

Authenticating...

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Other satellites on launch #91 in the year 1987 (1987-10-28 UTC)

COSMOS 1894, 18443

SL-12 R/B(1), 18444 (Decayed)

SL-12 PLAT, 18445 (Decayed)

SL-12 R/B(AUX MOTOR), 18447 (Decayed)

SL-12 R/B(AUX MOTOR), 18448 (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), 18446 on other resources

View SL-12 R/B(2), 18446 on Heavens-Above

View SL-12 R/B(2), 18446 on Keep Track

View SL-12 R/B(2), 18446 on Celestrak

View SL-12 R/B(2), 18446 on Gunter's Space Page

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