SL-8 R/B, 11751

Orbit data source: Space-Track

SL-8 R/B, 11751 is space debris in LEO originally from a launch on Thu, 03 Apr 1980 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/11751?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

11751, 1980-026B

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Omsk Av. Zav.

Mission

Spacecraft

Bus & Motor

S3, Unknown motor

Mass

1,434 kg wet, 1,434 kg dry

Launch date (UTC)

1980-04-03 (46 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: 20 hours ago

TLE from 20 hours ago

0 SL-8 R/B
1 11751U 80026B   26154.60093903  .00000009  00000-0  90634-4 0  9994
2 11751  65.8415 306.0721 0017762 303.1251 128.8254 13.77355067320372

Epoch: 2026-06-03T14:25Z

TLE epoch observation values (Epoch: 2026-06-03T14:25:21.132Z)

Latitude

60.37718°

Longitude

-110.62452°

Altitude

990.857 km

Speed

7.358 km/s

True Right ascension

23h 51m 04s

True Declination

60° 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

20:04:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

984.852 km

Perigee altitude

958.742 km

Semi-major axis

7,349.934 km

Eccentricity

0.00178

Inclination

65.8415°

RAAN

306.0721°

Arg. of periapsis

303.1251°

True anomaly

128.98375°

Mean anomaly

128.8254°

Eccentric anomaly

128.9046°

Mean motion

3.44443 °/min

Orbital period

104.52 mins

BSTAR

0.000090634

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Other satellites on launch #26 in the year 1980 (1980-04-03 UTC)

COSMOS 1171, 11750

SL-8 DEB, 11752

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SL-8 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.
11 mins	2026-06-04 11:05:09.752Z	183.468° SSW	2026-06-04 11:11:09.752Z	109.969° ESE	35.692°	2026-06-04 11:16:09.752Z	45.11° ENE
9 mins	2026-06-04 12:55:09.752Z	260.178° W	2026-06-04 12:59:09.752Z	317.735° NNW	28.777°	2026-06-04 13:04:09.752Z	13.294° NNE
4 mins	2026-06-04 18:30:09.752Z	22.233° NNE	2026-06-04 18:31:09.752Z	32.306° NE	13.229°	2026-06-04 18:34:09.752Z	60.956° ENE
11 mins	2026-06-04 20:15:09.752Z	339.727° N	2026-06-04 20:20:09.752Z	48.021° ENE	39.865°	2026-06-04 20:26:09.752Z	132.572° SE
8 mins	2026-06-04 22:04:09.752Z	293.324° NW	2026-06-04 22:07:09.752Z	258.11° W	22.789°	2026-06-04 22:12:09.752Z	202.777° 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out SL-8 R/B, 11751 on other resources

View SL-8 R/B, 11751 on Heavens-Above

View SL-8 R/B, 11751 on Keep Track

View SL-8 R/B, 11751 on Celestrak

View SL-8 R/B, 11751 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-8 R/B, 11751

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2026-06-03T14:25:21.132Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #26 in the year 1980 (1980-04-03 UTC)

SL-8 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 R/B, 11751 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago