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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 SL-3 DEB
1 25255U 81043D   25355.77463566  .00000020  00000-0  44729-5 0  9992
2 25255  81.2937 351.3254 0047874  11.7451  47.1701 14.08612963497014

Epoch: 2025-12-21T18:35Z

TLE epoch observation values (Epoch: 2025-12-21T18:35:28.521Z)

Latitude

58.32222°

Longitude

-3.83453°

Altitude

850.443 km

Speed

7.445 km/s

True Right ascension

00h 22m 27s

True Declination

58° 10' 13"

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

15:28:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

895.954 km

Perigee altitude

826.638 km

Semi-major axis

7,239.433 km

Eccentricity

0.00479

Inclination

81.2937°

RAAN

351.3254°

Arg. of periapsis

11.7451°

True anomaly

47.57407°

Mean anomaly

47.1701°

Eccentric anomaly

47.37192°

Mean motion

3.5236 °/min

Orbital period

102.17 mins

BSTAR

0.0000044729

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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, 28389

METEOR 2-7 DEB, 43302

METEOR 2-7 DEB, 43300

METEOR 2-7 DEB, 45515

METEOR 2-7 DEB, 28388

METEOR 2-7 DEB, 38288

METEOR 2-7 DEB, 36877 (Decayed)

METEOR 2-7 DEB, 28600 (Decayed)

METEOR 2-7 DEB, 36875 (Decayed)

METEOR 2-7 DEB, 28602

METEOR 2-7 DEB, 59993

METEOR 2-7 DEB, 36973 (Decayed)

METEOR 2-7 DEB, 36972 (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	2025-12-22 23:25:47.761Z	123.732° SE	2025-12-22 23:28:47.761Z	86.957° E	18.108°	2025-12-22 23:31:47.761Z	49.795° ENE
9 mins	2025-12-23 01:07:47.761Z	214.055° SW	2025-12-23 01:11:47.761Z	291.252° WNW	37.361°	2025-12-23 01:16:47.761Z	358.152° N
4 mins	2025-12-23 10:07:47.761Z	47.039° ENE	2025-12-23 10:09:47.761Z	70.66° E	15.049°	2025-12-23 10:11:47.761Z	93.003° ESE
10 mins	2025-12-23 11:48:47.761Z	344.381° N	2025-12-23 11:52:47.761Z	294.08° NW	42.914°	2025-12-23 11:58:47.761Z	181.245° SSW

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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-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: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2025-12-21T18:35:28.521Z)

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: 22 hours ago