SL-12 R/B(2), 20623

Orbit data source: Space-Track

SL-12 R/B(2), 20623 is space debris in MEO 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/20623?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20623, 1990-045E

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)

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, 3.1 m

Radar Cross Section

23.597 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 4 days ago

TLE from 4 days ago

0 SL-12 R/B(2)
1 20623U 90045E   26169.38563186 -.00000052  00000-0  00000+0 0  9992
2 20623  64.6839 306.9894 0013663 345.6485  55.3012  2.13419147281362

Epoch: 2026-06-18T09:15Z

TLE epoch observation values (Epoch: 2026-06-18T09:15:18.592Z)

Latitude

36.50312°

Longitude

-78.03583°

Altitude

19,088.241 km

Speed

3.959 km/s

True Right ascension

21h 49m 41s

True Declination

36° 27' 26"

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

00:27:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,139.053 km

Perigee altitude

19,069.42 km

Semi-major axis

25,482.373 km

Eccentricity

0.00137

Inclination

64.6839°

RAAN

306.9894°

Arg. of periapsis

345.6485°

True anomaly

55.43005°

Mean anomaly

55.3012°

Eccentric anomaly

55.36561°

Mean motion

0.53356 °/min

Orbital period

674.71 mins

BSTAR

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

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

COSMOS 2079 (GLONASS), 20619

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

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

COSMOS 2080 (GLONASS), 20620

COSMOS 2081 (GLONASS), 20621

SL-12 DEB, 48349

SL-12 DEB, 48417

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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.
354 mins	2026-06-22 13:25:20.221Z	252.894° W	2026-06-22 16:34:20.221Z	27.616° NE	40.782°	2026-06-22 19:19:20.221Z	138.716° SSE
139 mins	2026-06-23 11:06:20.221Z	216.724° SW	2026-06-23 13:25:20.221Z	302.583° NW	41.123°	2026-06-23 13:25:20.221Z	302.583° NW

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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), 20623 on other resources

View SL-12 R/B(2), 20623 on Heavens-Above

View SL-12 R/B(2), 20623 on Keep Track

View SL-12 R/B(2), 20623 on Celestrak

View SL-12 R/B(2), 20623 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), 20623

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 days ago

TLE from 4 days ago

TLE epoch observation values (Epoch: 2026-06-18T09:15:18.592Z)

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(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 20623 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 days ago