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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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 (45 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

Medium (>0.1 m² and <1 m²)

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

TLE from 8 hours ago

0 SL-3 DEB
1 25255U 81043D   26224.47241036 -.00000006  00000-0 -11140-4 0  9997
2 25255  81.2991 125.7363 0046976  71.5950  49.7971 14.08692709529916

Epoch: 2026-08-12T11:20Z

TLE epoch observation values (Epoch: 2026-08-12T11:20:16.255Z)

Latitude

57.24636°

Longitude

161.05475°

Altitude

851.549 km

Speed

7.444 km/s

True Right ascension

19h 28m 11s

True Declination

57° 05' 30"

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

09:30:06

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

895.029 km

Perigee altitude

827.015 km

Semi-major axis

7,239.159 km

Eccentricity

0.0047

Inclination

81.2991°

RAAN

125.7363°

Arg. of periapsis

71.595°

True anomaly

50.2098°

Mean anomaly

49.7971°

Eccentric anomaly

50.00329°

Mean motion

3.5238 °/min

Orbital period

102.16 mins

BSTAR

-0.00001114

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

METEOR 2-7 DEB, 36879

METEOR 2-7 DEB, 36876 (Decayed)

METEOR 2-7 DEB, 43300

METEOR 2-7 DEB, 43302

METEOR 2-7 DEB, 36974 (Decayed)

METEOR 2-7 DEB, 36875 (Decayed)

METEOR 2-7 DEB, 28600 (Decayed)

METEOR 2-7 DEB, 36878

METEOR 2-7 DEB, 28599 (Decayed)

SL-3 R/B, 12457

SL-3 DEB, 15769

METEOR 2-7 DEB, 36973 (Decayed)

METEOR 2-7 DEB, 45515

METEOR 2-7 DEB, 28388

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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.
8 mins	2026-08-12 19:25:36.024Z	237.556° WSW	2026-08-12 19:29:36.024Z	289.526° WNW	23.163°	2026-08-12 19:33:36.024Z	340.84° N
7 mins	2026-08-13 04:24:36.024Z	29.042° NE	2026-08-13 04:27:36.024Z	76.639° E	25.625°	2026-08-13 04:31:36.024Z	127.793° SE
7 mins	2026-08-13 06:07:36.024Z	318.836° NNW	2026-08-13 06:10:36.024Z	268.066° W	29.674°	2026-08-13 06:14:36.024Z	210.849° SW
8 mins	2026-08-13 17:34:36.024Z	150.122° SSE	2026-08-13 17:38:36.024Z	81.184° E	31.367°	2026-08-13 17:42:36.024Z	28.379° 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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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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-08-12T11:20:16.255Z)

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: 8 hours ago