SL-12 R/B(AUX MOTOR), 28920

Orbit data source: Space-Track

SL-12 R/B(AUX MOTOR), 28920 is space debris in HEO originally from a launch on Sun, 25 Dec 2005 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/28920?theme=dark&initialShowStats=false

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Identifier

28920, 2005-050F

Orbit

HEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

RKKE

Mission

Spacecraft

Bus & Motor

SOZ, Unknown motor

Mass

56 kg wet, 56 kg dry

Launch date (UTC)

2005-12-25 (21 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: 18 hours ago

TLE from 18 hours ago

0 SL-12 R/B(AUX MOTOR)
1 28920U 05050F   26313.39229110  .00000182  00000-0  36723-3 0  9998
2 28920  65.3059  12.6160 5772122 158.2123 242.4799  4.21705937321354

Epoch: 2026-11-09T09:24Z

TLE epoch observation values (Epoch: 2026-11-09T09:24:53.951Z)

Latitude

-0.00004°

Longitude

-177.17331°

Altitude

16,878.462 km

Speed

3.107 km/s

True Right ascension

00h 50m 29s

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

23:34:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,144.202 km

Perigee altitude

463.386 km

Semi-major axis

16,181.931 km

Eccentricity

0.57721

Inclination

65.3059°

RAAN

12.616°

Arg. of periapsis

158.2123°

True anomaly

201.82531°

Mean anomaly

242.4799°

Eccentric anomaly

220.84878°

Mean motion

1.05438 °/min

Orbital period

341.43 mins

BSTAR

0.00036723

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Other satellites on launch #50 in the year 2005 (2005-12-25 UTC)

SL-12 R/B(AUX MOTOR), 28919

SL-12 R/B(2), 28918

COSMOS 2417 (GLONASS), 28917

COSMOS 2418 (GLONASS), 28916

COSMOS 2419 (GLONASS), 28915

SL-12 R/B(1), 28921 (Decayed)

SL-12 DEB, 43919

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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.
39 mins	2026-11-10 03:17:16.681Z	114.594° SE	2026-11-10 03:28:16.681Z	99.476° ESE	46.611°	2026-11-10 03:56:16.681Z	41.197° NE
99 mins	2026-11-10 08:09:16.681Z	245.148° WSW	2026-11-10 09:35:16.681Z	319.692° NNW	34.883°	2026-11-10 09:48:16.681Z	27.423° NE
7 mins	2026-11-10 15:35:16.681Z	316.281° NNW	2026-11-10 15:39:16.681Z	262.396° W	35.248°	2026-11-10 15:42:16.681Z	184.659° SSW
99 mins	2026-11-11 00:58:16.681Z	123.239° SE	2026-11-11 02:11:16.681Z	90.619° ESE	28.999°	2026-11-11 02:37:16.681Z	49.373° ENE

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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), 28920 on other resources

View SL-12 R/B(AUX MOTOR), 28920 on Heavens-Above

View SL-12 R/B(AUX MOTOR), 28920 on Keep Track

View SL-12 R/B(AUX MOTOR), 28920 on Celestrak

View SL-12 R/B(AUX MOTOR), 28920 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), 28920

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: 2026-11-09T09:24:53.951Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #50 in the year 2005 (2005-12-25 UTC)

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

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(AUX MOTOR), 28920 on other resources

Documentation

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