SL-12 R/B(2), 20028

Orbit data source: Space-Track

SL-12 R/B(2), 20028 is space debris in MEO originally from a launch on Wed, 31 May 1989 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/20028?theme=dark&initialShowStats=false

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Identifier

20028, 1989-039E

Orbit

MEO

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)

1989-05-31 (37 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.1 m

Radar Cross Section

23.684 m², Large (>1 m²)

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

TLE from 1 day ago

0 SL-12 R/B(2)
1 20028U 89039E   25344.59336119 -.00000050  00000-0  00000+0 0  9991
2 20028  65.0187 315.6765 0008628 286.0941 287.0722  2.13485199270300

Epoch: 2025-12-10T14:14Z

TLE epoch observation values (Epoch: 2025-12-10T14:14:26.406Z)

Latitude

-29.73791°

Longitude

-142.09371°

Altitude

19,102.203 km

Speed

3.956 km/s

True Right ascension

10h 04m 18s

True Declination

-29° 41' 47"

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

17:02:39

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,120.95 km

Perigee altitude

19,076.986 km

Semi-major axis

25,477.105 km

Eccentricity

0.00086

Inclination

65.0187°

RAAN

315.6765°

Arg. of periapsis

286.0941°

True anomaly

286.97766°

Mean anomaly

287.0722°

Eccentric anomaly

287.02493°

Mean motion

0.53373 °/min

Orbital period

674.5 mins

BSTAR

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Other satellites on launch #39 in the year 1989 (1989-05-31 UTC)

SL-12 DEB, 29334 (Decayed)

SL-12 DEB, 29514 (Decayed)

SL-12 DEB, 29330 (Decayed)

SL-12 DEB, 29424 (Decayed)

SL-12 DEB, 29311

SL-12 DEB, 29478 (Decayed)

SL-12 DEB, 29412 (Decayed)

SL-12 DEB, 29409 (Decayed)

SL-12 DEB, 29466 (Decayed)

SL-12 DEB, 29416

SL-12 DEB, 29331

SL-12 DEB, 29326

SL-12 DEB, 29346 (Decayed)

SL-12 DEB, 29425 (Decayed)

SL-12 DEB, 29320 (Decayed)

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SL-12 R/B(2) 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.
79 mins	2025-12-11 18:40:13.087Z	62.043° ENE	2025-12-11 19:08:13.087Z	47.665° ENE	16.548°	2025-12-11 19:59:13.087Z	23.94° NE
310 mins	2025-12-12 05:53:13.087Z	299.771° NW	2025-12-12 08:44:13.087Z	76.203° E	44.894°	2025-12-12 11:03:13.087Z	173.785° S

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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), 20028 on other resources

View SL-12 R/B(2), 20028 on Heavens-Above

View SL-12 R/B(2), 20028 on Keep Track

View SL-12 R/B(2), 20028 on Celestrak

View SL-12 R/B(2), 20028 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), 20028

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: 2025-12-10T14:14:26.406Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #39 in the year 1989 (1989-05-31 UTC)

SL-12 R/B(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 20028 on other resources

Documentation

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