SL-14 R/B, 20741

Orbit data source: Space-Track

SL-14 R/B, 20741 is space debris in LEO originally from a launch on Wed, 08 Aug 1990 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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/20741?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20741, 1990-070G

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

S5M, Unknown motor

Mass

1,600 kg wet, 1,600 kg dry

Launch date (UTC)

1990-08-08 (35 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.4 m

Radar Cross Section

7.351 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 SL-14 R/B
1 20741U 90070G   25353.25870824  .00000019  00000-0  48969-4 0  9994
2 20741  82.5756 183.6816 0036707  99.8719  73.6634 12.55715961620940

Epoch: 2025-12-19T06:12Z

TLE epoch observation values (Epoch: 2025-12-19T06:12:32.391Z)

Latitude

5.93551°

Longitude

-178.32824°

Altitude

1,434.848 km

Speed

7.148 km/s

True Right ascension

00h 11m 38s

True Declination

5° 54' 12"

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

16:29:09

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,466.698 km

Perigee altitude

1,409.317 km

Semi-major axis

7,816.144 km

Eccentricity

0.00367

Inclination

82.5756°

RAAN

183.6816°

Arg. of periapsis

99.8719°

True anomaly

74.06757°

Mean anomaly

73.6634°

Eccentric anomaly

73.86543°

Mean motion

3.1409 °/min

Orbital period

114.62 mins

BSTAR

0.000048969

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Other satellites on launch #70 in the year 1990 (1990-08-08 UTC)

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SL-14 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.
11 mins	2025-12-19 23:07:21.339Z	22.446° NNE	2025-12-19 23:12:21.339Z	63.414° ENE	21.069°	2025-12-19 23:18:21.339Z	112.553° SE
15 mins	2025-12-20 01:02:21.339Z	347.166° N	2025-12-20 01:09:21.339Z	250.359° W	43.663°	2025-12-20 01:17:21.339Z	183.862° SSW
10 mins	2025-12-20 12:01:21.339Z	121.117° SE	2025-12-20 12:06:21.339Z	77.949° E	21.72°	2025-12-20 12:11:21.339Z	37.431° NE
14 mins	2025-12-20 13:54:21.339Z	199.763° SSW	2025-12-20 14:00:21.339Z	259.669° W	42.675°	2025-12-20 14:08:21.339Z	1.857° NNE
4 mins	2025-12-20 15:56:21.339Z	287.978° WNW	2025-12-20 15:58:21.339Z	302.74° NW	11.966°	2025-12-20 16:00:21.339Z	317.38° NNW

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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-14 R/B, 20741 on other resources

View SL-14 R/B, 20741 on Heavens-Above

View SL-14 R/B, 20741 on Keep Track

View SL-14 R/B, 20741 on Celestrak

View SL-14 R/B, 20741 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-14 R/B, 20741

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2025-12-19T06:12:32.391Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #70 in the year 1990 (1990-08-08 UTC)

SL-14 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-14 R/B, 20741 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago