SL-6 R/B(2), 20333

Orbit data source: Space-Track

SL-6 R/B(2), 20333 is space debris in HEO originally from a launch on Thu, 23 Nov 1989 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/20333?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20333, 1989-091D

Orbit

HEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK-L, Unknown motor

Mass

900 kg wet, 900 kg dry

Launch date (UTC)

1989-11-23 (37 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.6 m

Radar Cross Section

8.039 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 SL-6 R/B(2)
1 20333U 89091D   26155.00748098 -.00000492  00000-0  00000-0 0  9999
2 20333  69.5036 134.9096 5379178  48.7317  75.0731  2.04212577245446

Epoch: 2026-06-04T00:10Z

TLE epoch observation values (Epoch: 2026-06-04T00:10:46.356Z)

Latitude

-2.85958°

Longitude

60.80289°

Altitude

23,507.047 km

Speed

3.389 km/s

True Right ascension

21h 03m 48s

True Declination

-2° 51' 20"

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

08:05:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

33,980.106 km

Perigee altitude

5,747.885 km

Semi-major axis

26,242.133 km

Eccentricity

0.53792

Inclination

69.5036°

RAAN

134.9096°

Arg. of periapsis

48.7317°

True anomaly

134.27448°

Mean anomaly

75.0731°

Eccentric anomaly

104.86241°

Mean motion

0.51056 °/min

Orbital period

705.11 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #91 in the year 1989 (1989-11-23 UTC)

SL-6 R/B(1), 20331 (Decayed)

SL-6 PLAT, 20332 (Decayed)

COSMOS 2050, 20330

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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SL-6 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.
234 mins	2026-06-05 09:17:03.393Z	331.928° NNW	2026-06-05 09:59:03.393Z	249.566° W	44.982°	2026-06-05 13:11:03.393Z	199.311° SSW
33 mins	2026-06-05 20:22:03.393Z	119.626° SE	2026-06-05 20:39:03.393Z	79.065° E	19.16°	2026-06-05 20:55:03.393Z	37.113° 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-6 R/B(2), 20333 on other resources

View SL-6 R/B(2), 20333 on Heavens-Above

View SL-6 R/B(2), 20333 on Keep Track

View SL-6 R/B(2), 20333 on Celestrak

View SL-6 R/B(2), 20333 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-6 R/B(2), 20333

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-06-04T00:10:46.356Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #91 in the year 1989 (1989-11-23 UTC)

SL-6 R/B(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-6 R/B(2), 20333 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago