SL-12 R/B(AUX MOTOR), 20631

Orbit data source: Space-Track

SL-12 R/B(AUX MOTOR), 20631 is space debris in HEO originally from a launch on Sat, 19 May 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.

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https://www.satcat.com/sats-embedded/20631?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20631, 1990-045G

Orbit

HEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

SOZ, Unknown motor

Mass

Wet unknown, ~60 kg dry

Launch date (UTC)

1990-05-19 (36 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.6 m

Radar Cross Section

0.660 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 SL-12 R/B(AUX MOTOR)
1 20631U 90045G   26170.85191003  .00000231  00000-0  76181-3 0  9995
2 20631  64.8550  46.1321 5518228 135.4718 285.1718  4.52122435577165

Epoch: 2026-06-19T20:26Z

TLE epoch observation values (Epoch: 2026-06-19T20:26:45.026Z)

Latitude

-0.00001°

Longitude

-168.62018°

Altitude

11,324.14 km

Speed

4.386 km/s

True Right ascension

03h 04m 34s

True Declination

0° 00' 00"

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

00:33:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

17,594.098 km

Perigee altitude

545.211 km

Semi-major axis

15,447.792 km

Eccentricity

0.55182

Inclination

64.855°

RAAN

46.1321°

Arg. of periapsis

135.4718°

True anomaly

224.58494°

Mean anomaly

285.1718°

Eccentric anomaly

254.67842°

Mean motion

1.13043 °/min

Orbital period

318.46 mins

BSTAR

0.00076181

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Other satellites on launch #45 in the year 1990 (1990-05-19 UTC)

SL-12 R/B(AUX MOTOR), 20630

SL-12 R/B(1), 20622 (Decayed)

SL-12 R/B(2), 20623

COSMOS 2079 (GLONASS), 20619

COSMOS 2080 (GLONASS), 20620

COSMOS 2081 (GLONASS), 20621

SL-12 DEB, 48349

SL-12 DEB, 48417

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SL-12 R/B(AUX MOTOR) Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
90 mins	2026-06-22 16:49:37.930Z	204.118° SW	2026-06-22 18:08:37.930Z	305.142° NW	43.915°	2026-06-22 18:19:37.930Z	27.52° NE

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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(AUX MOTOR), 20631 on other resources

View SL-12 R/B(AUX MOTOR), 20631 on Heavens-Above

View SL-12 R/B(AUX MOTOR), 20631 on Keep Track

View SL-12 R/B(AUX MOTOR), 20631 on Celestrak

View SL-12 R/B(AUX MOTOR), 20631 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(AUX MOTOR), 20631

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-19T20:26:45.026Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #45 in the year 1990 (1990-05-19 UTC)

SL-12 R/B(AUX MOTOR) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(AUX MOTOR), 20631 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago