SL-6 R/B(2), 11909

Orbit data source: Space-Track

SL-6 R/B(2), 11909 is space debris originally from a launch on Fri, 18 Jul 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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Iframe URL

https://www.satcat.com/sats-embedded/11909?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

11909, 1980-063D

Orbit

Molniya

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK-L, Unknown motor

Mass

~900 kg wet, ~1,000 kg dry

Launch date (UTC)

1980-07-18 (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)

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Last TLE update: 2 weeks ago

TLE from 2 weeks ago

0 SL-6 R/B(2)
1 11909U 80063D   26159.96539954 -.00001303  00000-0  00000+0 0  9997
2 11909  63.7514  20.8900 7330524 277.5249  12.0783  1.96875876329469

Epoch: 2026-06-08T23:10Z

TLE epoch observation values (Epoch: 2026-06-08T23:10:10.520Z)

Latitude

-0.00035°

Longitude

136.06539°

Altitude

4,998.286 km

Speed

7.434 km/s

True Right ascension

01h 23m 48s

True Declination

0° 00' 01"

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

23:07:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

40,223.528 km

Perigee altitude

800.066 km

Semi-major axis

26,889.934 km

Eccentricity

0.73305

Inclination

63.7514°

RAAN

20.89°

Arg. of periapsis

277.5249°

True anomaly

82.28061°

Mean anomaly

12.0783°

Eccentric anomaly

37.84963°

Mean motion

0.49222 °/min

Orbital period

731.38 mins

BSTAR

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Other satellites on launch #63 in the year 1980 (1980-07-18 UTC)

MOLNIYA 3-13, 11896

SL-6 R/B(1), 11897 (Decayed)

SL-6 DEB *, 48261

SL-6 DEB *, 48262

SL-6 PLAT, 11898 (Decayed)

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SL-6 R/B(2) 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.
676 mins	2026-06-22 16:21:33.262Z	224.852° SW	2026-06-22 17:28:33.262Z	299.849° NW	43.337°	2026-06-23 03:37:33.262Z	204.661° 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-6 R/B(2), 11909 on other resources

View SL-6 R/B(2), 11909 on Heavens-Above

View SL-6 R/B(2), 11909 on Keep Track

View SL-6 R/B(2), 11909 on Celestrak

View SL-6 R/B(2), 11909 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-6 R/B(2), 11909

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 weeks ago

TLE from 2 weeks ago

TLE epoch observation values (Epoch: 2026-06-08T23:10:10.520Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #63 in the year 1980 (1980-07-18 UTC)

SL-6 R/B(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-6 R/B(2), 11909 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 weeks ago