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: 13 hours ago

TLE from 13 hours ago

0 SL-12 R/B(AUX MOTOR)
1 28920U 05050F   26043.67033953  .00001499  00000-0  10852-2 0  9993
2 28920  65.0228 111.1865 5832105 171.9709 204.6928  4.21410426309981

Epoch: 2026-02-12T16:05Z

TLE epoch observation values (Epoch: 2026-02-12T16:05:17.335Z)

Latitude

-0.00004°

Longitude

87.14832°

Altitude

18,906.772 km

Speed

2.629 km/s

True Right ascension

07h 24m 45s

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

07:17:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,253.259 km

Perigee altitude

369.479 km

Semi-major axis

16,189.506 km

Eccentricity

0.58321

Inclination

65.0228°

RAAN

111.1865°

Arg. of periapsis

171.9709°

True anomaly

188.07626°

Mean anomaly

204.6928°

Eccentric anomaly

195.66833°

Mean motion

1.05364 °/min

Orbital period

341.67 mins

BSTAR

0.0010852

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

SL-12 DEB, 43919

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

SL-12 R/B(2), 28918

COSMOS 2419 (GLONASS), 28915

COSMOS 2417 (GLONASS), 28917

COSMOS 2418 (GLONASS), 28916

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

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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.
45 mins	2026-02-13 04:44:56.160Z	119.664° SE	2026-02-13 04:53:56.160Z	101.564° ESE	42.453°	2026-02-13 05:29:56.160Z	35.233° NE
86 mins	2026-02-13 09:57:56.160Z	269.942° W	2026-02-13 11:12:56.160Z	340.591° N	27.726°	2026-02-13 11:23:56.160Z	41.35° NE
158 mins	2026-02-14 01:35:56.160Z	134.081° SE	2026-02-14 03:36:56.160Z	92.925° ESE	36.446°	2026-02-14 04:13:56.160Z	38.267° 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-02-12T16:05:17.335Z)

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: 13 hours ago