SL-12 R/B(2), 21703

Orbit data source: Space-Track

SL-12 R/B(2), 21703 is space debris in GEO originally from a launch on Fri, 13 Sep 1991 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 URL

https://www.satcat.com/sats-embedded/21703?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21703, 1991-064B

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)

1991-09-13 (34 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)

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Last TLE update: 13 hours ago

TLE from 13 hours ago

0 SL-12 R/B(2)
1 21703U 91064B   26065.72544876 -.00000308  00000-0  00000+0 0  9996
2 21703  13.4072 340.6730 0003169   0.1630 230.5887  0.99900806119122

Epoch: 2026-03-06T17:24Z

TLE epoch observation values (Epoch: 2026-03-06T17:24:38.772Z)

Latitude

-10.34296°

Longitude

145.02824°

Altitude

35,901.03 km

Speed

3.07 km/s

True Right ascension

14h 02m 35s

True Declination

-10° 19' 58"

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

10:25:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,905.295 km

Perigee altitude

35,878.504 km

Semi-major axis

42,270.036 km

Eccentricity

0.00032

Inclination

13.4072°

RAAN

340.673°

Arg. of periapsis

0.163°

True anomaly

230.56065°

Mean anomaly

230.5887°

Eccentric anomaly

230.57467°

Mean motion

0.24974 °/min

Orbital period

1,441.48 mins

BSTAR

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Other satellites on launch #64 in the year 1991 (1991-09-13 UTC)

SL-12 R/B(AUX MOTOR), 21740 (Decayed)

COSMOS 2155, 21702

SL-12 R/B(AUX MOTOR), 21739 (Decayed)

SL-12 PLAT, 21704 (Decayed)

SL-12 R/B(1), 21705 (Decayed)

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SL-12 R/B(2) Visibility

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21703 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), 21703 on other resources

View SL-12 R/B(2), 21703 on Heavens-Above

View SL-12 R/B(2), 21703 on Keep Track

View SL-12 R/B(2), 21703 on Celestrak

View SL-12 R/B(2), 21703 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), 21703

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: 2026-03-06T17:24:38.772Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #64 in the year 1991 (1991-09-13 UTC)

SL-12 R/B(2) Visibility

21703 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 21703 on other resources

Documentation

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