SL-12 R/B(2), 16870

Orbit data source: Space-Track

SL-12 R/B(2), 16870 is space debris in GEO originally from a launch on Fri, 17 Jan 1986 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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Iframe URL

https://www.satcat.com/sats-embedded/16870?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

16870, 1986-007F

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)

1986-01-17 (40 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.1 m

Radar Cross Section

23.597 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 SL-12 R/B(2)
1 16870U 86007F   25346.83432932 -.00000097  00000-0  00000-0 0  9994
2 16870  11.3556 323.7537 0030855 174.2025 180.1260  0.97799541140810

Epoch: 2025-12-12T20:01Z

TLE epoch observation values (Epoch: 2025-12-12T20:01:26.053Z)

Latitude

-1.11791°

Longitude

-63.96238°

Altitude

36,625.857 km

Speed

3.04 km/s

True Right ascension

21h 12m 39s

True Declination

-1° 07' 00"

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

05:21:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,627.493 km

Perigee altitude

36,362.922 km

Semi-major axis

42,873.345 km

Eccentricity

0.00309

Inclination

11.3556°

RAAN

323.7537°

Arg. of periapsis

174.2025°

True anomaly

180.12523°

Mean anomaly

180.126°

Eccentric anomaly

180.12561°

Mean motion

0.24449 °/min

Orbital period

1,472.45 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #7 in the year 1986 (1986-01-17 UTC)

SL-12 PLAT, 16499 (Decayed)

RADUGA 18, 16497

SL-12 R/B(AUX MOTOR), 16500 (Decayed)

SL-12 R/B(1), 16498 (Decayed)

SL-12 R/B(AUX MOTOR), 16501 (Decayed)

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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	2025-12-13 06:53:20.691Z	126.1° SE	2025-12-14 03:13:20.691Z	129.804° SE	35.533°	2025-12-14 06:53:20.691Z	135.071° SSE

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16870 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), 16870 on other resources

View SL-12 R/B(2), 16870 on Heavens-Above

View SL-12 R/B(2), 16870 on Keep Track

View SL-12 R/B(2), 16870 on Celestrak

View SL-12 R/B(2), 16870 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), 16870

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2025-12-12T20:01:26.053Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #7 in the year 1986 (1986-01-17 UTC)

SL-12 R/B(2) Visibility forecast

16870 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 16870 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago