SL-12 R/B(2), 16339

Orbit data source: Space-Track

SL-12 R/B(2), 16339 is space debris in GEO originally from a launch on Fri, 15 Nov 1985 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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/16339?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

16339, 1985-107F

Orbit

GEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK DM, Unknown motor

Mass

2,440 kg wet, 2,440 kg dry

Launch date (UTC)

1985-11-15 (40 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 14 hours ago

TLE from 14 hours ago

0 SL-12 R/B(2)
1 16339U 85107F   26130.08904972 -.00000060  00000-0  00000+0 0  9990
2 16339  11.1375 323.1472 0017919 121.8860  57.4908  0.97494132127009

Epoch: 2026-05-10T02:08Z

TLE epoch observation values (Epoch: 2026-05-10T02:08:13.895Z)

Latitude

0.07336°

Longitude

-117.2487°

Altitude

36,542.202 km

Speed

3.049 km/s

True Right ascension

09h 30m 49s

True Declination

0° 04' 24"

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

23:54:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,661.681 km

Perigee altitude

36,507.71 km

Semi-major axis

42,962.832 km

Eccentricity

0.00179

Inclination

11.1375°

RAAN

323.1472°

Arg. of periapsis

121.886°

True anomaly

57.66417°

Mean anomaly

57.4908°

Eccentric anomaly

57.57746°

Mean motion

0.24373 °/min

Orbital period

1,477.06 mins

BSTAR

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Other satellites on launch #107 in the year 1985 (1985-11-15 UTC)

SL-12 PLAT, 16252 (Decayed)

SL-12 R/B(AUX MOTOR), 16255 (Decayed)

SL-12 R/B(AUX MOTOR), 16254 (Decayed)

SL-12 R/B(1), 16251 (Decayed)

RADUGA 17, 16250

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SL-12 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.
1440 mins	2026-05-10 15:41:10.389Z	209.328° SW	2026-05-10 20:39:10.389Z	217.345° SW	37.76°	2026-05-11 15:41:10.389Z	221.136° SW

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16339 neighbors

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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-12 R/B(2), 16339 on other resources

View SL-12 R/B(2), 16339 on Heavens-Above

View SL-12 R/B(2), 16339 on Keep Track

View SL-12 R/B(2), 16339 on Celestrak

View SL-12 R/B(2), 16339 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-12 R/B(2), 16339

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-05-10T02:08:13.895Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #107 in the year 1985 (1985-11-15 UTC)

SL-12 R/B(2) Visibility forecast

16339 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 16339 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago