SL-12 R/B(2), 20266

Orbit data source: Space-Track

SL-12 R/B(2), 20266 is space debris in GEO originally from a launch on Thu, 28 Sep 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.

Not visible in the next 10 days

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<iframe src="https://www.satcat.com/sats-embedded/20266?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/20266?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20266, 1989-081D

Orbit

GEO

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)

1989-09-28 (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

23.597 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 SL-12 R/B(2)
1 20266U 89081D   26098.54747966 -.00000367  00000-0  00000-0 0  9992
2 20266  11.9580 333.3492 0026121 122.0360  46.6379  1.00612825118656

Epoch: 2026-04-08T13:08Z

TLE epoch observation values (Epoch: 2026-04-08T13:08:22.242Z)

Latitude

2.27775°

Longitude

108.59088°

Altitude

35,615.707 km

Speed

3.084 km/s

True Right ascension

09h 29m 58s

True Declination

2° 16' 32"

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

08:30:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,802.157 km

Perigee altitude

35,582.372 km

Semi-major axis

42,070.402 km

Eccentricity

0.00261

Inclination

11.958°

RAAN

333.3492°

Arg. of periapsis

122.036°

True anomaly

46.85601°

Mean anomaly

46.6379°

Eccentric anomaly

46.7469°

Mean motion

0.25152 °/min

Orbital period

1,431.28 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #81 in the year 1989 (1989-09-28 UTC)

GORIZONT 19, 20263

SL-12 R/B(1), 20264 (Decayed)

SL-12 PLAT, 20265 (Decayed)

SL-12 R/B(AUX MOTOR), 20270 (Decayed)

SL-12 R/B(AUX MOTOR), 20271 (Decayed)

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SL-12 R/B(2) Visibility

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SL-12 R/B(2) is likely not visible in the next few days.

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20266 neighbors

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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), 20266 on other resources

View SL-12 R/B(2), 20266 on Heavens-Above

View SL-12 R/B(2), 20266 on Keep Track

View SL-12 R/B(2), 20266 on Celestrak

View SL-12 R/B(2), 20266 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), 20266

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-04-08T13:08:22.242Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #81 in the year 1989 (1989-09-28 UTC)

SL-12 R/B(2) Visibility

20266 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 20266 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago