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

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/21019?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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

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)

1990-12-20 (36 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.6 m

Radar Cross Section

23.597 m², Large (>1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 SL-12 R/B(2)
1 21019U 90112D   26269.96455396 -.00000177  00000-0  00000-0 0  9994
2 21019  12.8080 337.3645 0025870 188.9269 276.0043  1.00011173120953

Epoch: 2026-09-26T23:08Z

TLE epoch observation values (Epoch: 2026-09-26T23:08:57.462Z)

Latitude

12.38381°

Longitude

89.33141°

Altitude

35,847.886 km

Speed

3.073 km/s

True Right ascension

05h 29m 20s

True Declination

12° 22' 18"

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

02:09:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,970.076 km

Perigee altitude

35,751.532 km

Semi-major axis

42,238.941 km

Eccentricity

0.00259

Inclination

12.808°

RAAN

337.3645°

Arg. of periapsis

188.9269°

True anomaly

275.70938°

Mean anomaly

276.0043°

Eccentric anomaly

275.85685°

Mean motion

0.25002 °/min

Orbital period

1,439.89 mins

BSTAR

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Computing Atmospheric mass density...

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

RADUGA 26, 21016

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

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

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

SL-12 PLAT, 21018 (Decayed)

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SL-12 R/B(2) Visibility

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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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SL-12 R/B(2), 21019

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-09-26T23:08:57.462Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SL-12 R/B(2) Visibility

21019 neighbors

Co-orbital & Co-planar RSOs

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

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago