SL-3 DEB, 25255

Orbit data source: Space-Track

SL-3 DEB, 25255 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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Iframe URL

https://www.satcat.com/sats-embedded/25255?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25255, 1981-043D

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1981-05-14 (44 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 SL-3 DEB
1 25255U 81043D   25310.68802711  .00000111  00000-0  56483-4 0  9992
2 25255  81.2989  34.8579 0047315 135.7831  16.3857 14.08607650490664

Epoch: 2025-11-06T16:30Z

TLE epoch observation values (Epoch: 2025-11-06T16:30:45.542Z)

Latitude

27.37268°

Longitude

-83.49519°

Altitude

834.605 km

Speed

7.455 km/s

True Right ascension

14h 01m 20s

True Declination

27° 14' 02"

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

05:01:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

895.567 km

Perigee altitude

827.06 km

Semi-major axis

7,239.451 km

Eccentricity

0.00473

Inclination

81.2989°

RAAN

34.8579°

Arg. of periapsis

135.7831°

True anomaly

16.53953°

Mean anomaly

16.3857°

Eccentric anomaly

16.46253°

Mean motion

3.52359 °/min

Orbital period

102.17 mins

BSTAR

0.000056483

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

SL-3 DEB, 15769

METEOR 2-7 DEB, 36875 (Decayed)

METEOR 2-7 DEB, 43301

METEOR 2-7 DEB, 36972 (Decayed)

METEOR 2-7 DEB, 28389

METEOR 2-7 DEB, 28388

METEOR 2-7 DEB, 38288

METEOR 2-7 DEB, 45515

METEOR 2-7 DEB, 28602

METEOR 2-7 DEB, 43302

METEOR 2-7 DEB, 43300

SL-3 R/B, 12457

METEOR 2-7 DEB, 36878

METEOR 2-7 DEB, 36973 (Decayed)

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SL-3 DEB 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.
6 mins	2025-11-07 16:15:05.344Z	32.203° NE	2025-11-07 16:18:05.344Z	69.202° E	17.323°	2025-11-07 16:21:05.344Z	105.45° ESE
8 mins	2025-11-07 17:58:05.344Z	335.082° NNW	2025-11-07 18:01:05.344Z	286.317° WNW	38.585°	2025-11-07 18:06:05.344Z	191.63° SSW
7 mins	2025-11-08 05:26:05.344Z	130.979° SE	2025-11-08 05:29:05.344Z	91.115° ESE	22.833°	2025-11-08 05:33:05.344Z	39.94° NE
9 mins	2025-11-08 07:08:05.344Z	221.351° SW	2025-11-08 07:12:05.344Z	282.22° WNW	33.025°	2025-11-08 07:17:05.344Z	352.825° N

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-3 DEB, 25255 on other resources

View SL-3 DEB, 25255 on Heavens-Above

View SL-3 DEB, 25255 on Keep Track

View SL-3 DEB, 25255 on Celestrak

View SL-3 DEB, 25255 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 DEB, 25255

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2025-11-06T16:30:45.542Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SL-3 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-3 DEB, 25255 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago