SL-3 R/B, 12457

Orbit data source: Space-Track

SL-3 R/B, 12457 is space debris in LEO originally from a launch on Thu, 14 May 1981 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/12457?theme=dark&initialShowStats=false

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Identifier

12457, 1981-043B

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Progress

Mission

Spacecraft

Bus & Motor

BLOK-E, Unknown motor

Mass

1,440 kg wet, 1,440 kg dry

Launch date (UTC)

1981-05-14 (45 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SL-3 R/B
1 12457U 81043B   25356.50615887 -.00000046  00000-0 -34239-4 0  9993
2 12457  81.2743 354.7174 0062858  35.8134 324.7226 14.07650231289958

Epoch: 2025-12-22T12:08Z

TLE epoch observation values (Epoch: 2025-12-22T12:08:52.126Z)

Latitude

0.00008°

Longitude

81.19694°

Altitude

833.229 km

Speed

7.455 km/s

True Right ascension

23h 38m 52s

True Declination

0° 00' 00"

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

19:24:40

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

910.126 km

Perigee altitude

819.073 km

Semi-major axis

7,242.737 km

Eccentricity

0.00629

Inclination

81.2743°

RAAN

354.7174°

Arg. of periapsis

35.8134°

True anomaly

324.30392°

Mean anomaly

324.7226°

Eccentric anomaly

324.51353°

Mean motion

3.52119 °/min

Orbital period

102.24 mins

BSTAR

-0.000034239

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Other satellites on launch #43 in the year 1981 (1981-05-14 UTC)

METEOR 2-7 DEB, 28597 (Decayed)

METEOR 2-7 DEB, 59993

METEOR 2-7, 12456

METEOR 2-7 DEB, 28389

METEOR 2-7 DEB, 28602

SL-3 DEB, 25255

METEOR 2-7 DEB, 43300

METEOR 2-7 DEB, 43302

METEOR 2-7 DEB, 35424

METEOR 2-7 DEB, 36877 (Decayed)

METEOR 2-7 DEB, 43301

SL-3 DEB, 15769

METEOR 2-7 DEB, 36875 (Decayed)

METEOR 2-7 DEB, 36973 (Decayed)

METEOR 2-7 DEB, 36974 (Decayed)

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SL-3 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	2025-12-23 00:12:35.166Z	150.849° SSE	2025-12-23 00:16:35.166Z	89.097° E	30.5°	2025-12-23 00:20:35.166Z	30.94° NE
7 mins	2025-12-23 01:56:35.166Z	242.177° WSW	2025-12-23 01:59:35.166Z	284.458° WNW	23.76°	2025-12-23 02:03:35.166Z	339.604° N
8 mins	2025-12-23 10:54:35.166Z	22.944° NE	2025-12-23 10:57:35.166Z	63.207° ENE	25.294°	2025-12-23 11:02:35.166Z	128.373° SE
9 mins	2025-12-23 12:37:35.166Z	326.056° NNW	2025-12-23 12:41:35.166Z	263.584° W	30.851°	2025-12-23 12:46:35.166Z	203.761° SW

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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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Check out SL-3 R/B, 12457 on other resources

View SL-3 R/B, 12457 on Heavens-Above

View SL-3 R/B, 12457 on Keep Track

View SL-3 R/B, 12457 on Celestrak

View SL-3 R/B, 12457 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-3 R/B, 12457

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2025-12-22T12:08:52.126Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #43 in the year 1981 (1981-05-14 UTC)

SL-3 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-3 R/B, 12457 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago