SL-16 R/B, 20625

Orbit data source: Space-Track

SL-16 R/B, 20625 is space debris in LEO originally from a launch on Tue, 22 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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<iframe src="https://www.satcat.com/sats-embedded/20625?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/20625?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20625, 1990-046B

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

11S772, Unknown motor

Mass

9,000 kg wet, 9,000 kg dry

Launch date (UTC)

1990-05-22 (36 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 5.2 m

Radar Cross Section

37.829 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-16 R/B
1 20625U 90046B   26093.86345905  .00000055  00000-0  53130-4 0  9990
2 20625  70.9987 245.0394 0016547 266.9622  92.9607 14.15019207851951

Epoch: 2026-04-03T20:43Z

TLE epoch observation values (Epoch: 2026-04-03T20:43:22.861Z)

Latitude

-0.00006°

Longitude

102.00264°

Altitude

845.284 km

Speed

7.43 km/s

True Right ascension

16h 20m 09s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

11:27:54

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

852.116 km

Perigee altitude

828.228 km

Semi-major axis

7,218.309 km

Eccentricity

0.00165

Inclination

70.9987°

RAAN

245.0394°

Arg. of periapsis

266.9622°

True anomaly

93.15004°

Mean anomaly

92.9607°

Eccentric anomaly

93.05537°

Mean motion

3.53908 °/min

Orbital period

101.72 mins

BSTAR

0.00005313

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Other satellites on launch #46 in the year 1990 (1990-05-22 UTC)

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SL-16 R/B 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.
8 mins	2026-04-04 10:25:09.122Z	150.779° SSE	2026-04-04 10:29:09.122Z	96.165° ESE	24.009°	2026-04-04 10:33:09.122Z	48.928° ENE
8 mins	2026-04-04 12:09:09.122Z	239.12° WSW	2026-04-04 12:12:09.122Z	286.833° WNW	33.333°	2026-04-04 12:17:09.122Z	6.379° NNE
9 mins	2026-04-04 21:03:09.122Z	339.755° N	2026-04-04 21:07:09.122Z	38.613° NE	44.671°	2026-04-04 21:12:09.122Z	154.664° SSE

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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-16 R/B, 20625 on other resources

View SL-16 R/B, 20625 on Heavens-Above

View SL-16 R/B, 20625 on Keep Track

View SL-16 R/B, 20625 on Celestrak

View SL-16 R/B, 20625 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-16 R/B, 20625

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-03T20:43:22.861Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #46 in the year 1990 (1990-05-22 UTC)

SL-16 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-16 R/B, 20625 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago