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 (20 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: 1 day ago

TLE from 1 day ago

0 SL-12 R/B(AUX MOTOR)
1 28920U 05050F   26133.12289308  .00000281  00000-0  34781-3 0  9996
2 28920  65.0892  78.1752 5805383 167.6519 217.2806  4.21545866313756

Epoch: 2026-05-13T02:56Z

TLE epoch observation values (Epoch: 2026-05-13T02:56:57.962Z)

Latitude

-0.00003°

Longitude

163.0398°

Altitude

18,410.576 km

Speed

2.746 km/s

True Right ascension

05h 12m 40s

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

12:17:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,204.518 km

Perigee altitude

411.287 km

Semi-major axis

16,186.039 km

Eccentricity

0.58054

Inclination

65.0892°

RAAN

78.1752°

Arg. of periapsis

167.6519°

True anomaly

192.41176°

Mean anomaly

217.2806°

Eccentric anomaly

203.8377°

Mean motion

1.05398 °/min

Orbital period

341.56 mins

BSTAR

0.00034781

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

SL-12 DEB, 43919

COSMOS 2418 (GLONASS), 28916

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

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

SL-12 R/B(2), 28918

COSMOS 2417 (GLONASS), 28917

COSMOS 2419 (GLONASS), 28915

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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.
165 mins	2026-05-14 17:52:53.706Z	144.524° SSE	2026-05-14 20:03:53.706Z	98.468° ESE	39.444°	2026-05-14 20:37:53.706Z	36.8° NE
114 mins	2026-05-15 00:35:53.706Z	249.911° W	2026-05-15 02:17:53.706Z	331.286° NNW	29.472°	2026-05-15 02:29:53.706Z	31.743° 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), 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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-05-13T02:56:57.962Z)

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: 1 day ago