SL-12 R/B(2), 21019

Orbit data source: Space-Track

SL-12 R/B(2), 21019 is space debris in GEO originally from a launch on Thu, 20 Dec 1990 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/21019?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21019, 1990-112D

Orbit

GEO

Last TLE update

8 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)

1990-12-20 (35 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)

Expand to show TLE details & history

TLE from 8 hours ago

0 SL-12 R/B(2)
1 21019U 90112D   25199.64045146 -.00000362  00000-0  00000-0 0  9994
2 21019  13.1932 340.4158 0027504 174.6828 129.0529  1.00024523116590

Epoch: 2025-07-18T15:22Z

TLE epoch observation values (Epoch: 2025-07-18T15:22:15.006Z)

Latitude

-10.93109°

Longitude

117.8505°

Altitude

35,931.526 km

Speed

3.067 km/s

True Right ascension

19h 00m 24s

True Declination

-10° 55' 13"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

12.23533°

Longitude

-119.35958°

Altitude

35,887.561 km

Speed

3.07 km/s

Apparent Right ascension

02h 55m 16s

Apparent Declination

6° 10' 09"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

12:28:07

Azimuth

314.899° NW

Elevation

-32.801°

Doppler factor

Orbital elements

Apogee altitude

35,973.205 km

Perigee altitude

35,740.878 km

Semi-major axis

42,235.178 km

Eccentricity

0.00275

Inclination

13.1932°

RAAN

340.4158°

Arg. of periapsis

174.6828°

True anomaly

129.29712°

Mean anomaly

129.0529°

Eccentric anomaly

129.17506°

Mean motion

0.25005 °/min

Orbital period

1,439.7 mins

BSTAR

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Other satellites on launch #112 in the year 1990 (1990-12-20 UTC)

RADUGA 26, 21016

SL-12 R/B(1), 21017 (Decayed)

SL-12 PLAT, 21018 (Decayed)

SL-12 R/B(AUX MOTOR), 21024 (Decayed)

SL-12 R/B(AUX MOTOR), 21025 (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

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21019 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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Check out SL-12 R/B(2), 21019 on other resources

View SL-12 R/B(2), 21019 on Heavens-Above

View SL-12 R/B(2), 21019 on Keep Track

View SL-12 R/B(2), 21019 on Celestrak

View SL-12 R/B(2), 21019 on Gunter's Space Page

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