SL-6 R/B(2), 12384

Orbit data source: Space-Track

SL-6 R/B(2), 12384 is space debris in HEO originally from a launch on Tue, 31 Mar 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/12384?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12384, 1981-031D

Orbit

HEO

Last TLE update

14 hours ago

Origin

Russian Strategic Rocket Forces (CIS)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK-L, Unknown motor

Mass

~900 kg wet, ~900 kg dry

Launch date (UTC)

1981-03-31 (44 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 2.7 m

Radar Cross Section

7.756 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 14 hours ago

0 SL-6 R/B(2)
1 12384U 81031D   25181.74913110 -.00000747  00000-0  00000-0 0  9993
2 12384  67.3882  94.5161 6264251   6.8628 358.7831  2.03545680328962

Epoch: 2025-06-30T17:58Z

TLE epoch observation values (Epoch: 2025-06-30T17:58:44.927Z)

Latitude

0.00023°

Longitude

-94.21007°

Altitude

3,465.591 km

Speed

8.114 km/s

True Right ascension

06h 18m 07s

True Declination

0° 00' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

25.34279°

Longitude

74.4237°

Altitude

26,669.803 km

Speed

2.995 km/s

Apparent Right ascension

17h 05m 56s

Apparent Declination

20° 59' 25"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:06:40

Azimuth

257.445° W

Elevation

47.27°

Doppler factor

Orbital elements

Apogee altitude

36,395.745 km

Perigee altitude

3,446.631 km

Semi-major axis

26,299.325 km

Eccentricity

0.62643

Inclination

67.3882°

RAAN

94.5161°

Arg. of periapsis

6.8628°

True anomaly

Unknown

Mean anomaly

358.7831°

Eccentric anomaly

Unknown

Mean motion

0.50889 °/min

Orbital period

707.42 mins

BSTAR

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Other satellites on launch #31 in the year 1981 (1981-03-31 UTC)

COSMOS 1261, 12376

SL-6 R/B(1), 12377 (Decayed)

SL-6 PLAT, 12378 (Decayed)

COSMOS 1261 DEB, 12892

COSMOS 1261 DEB, 12893

COSMOS 1261 DEB, 12894

COSMOS 1261 DEB, 27796

COSMOS 1261 DEB, 27901

COSMOS 1261 DEB, 27902

COSMOS 1261 DEB, 29202 (Decayed)

COSMOS 1261 DEB, 33520

COSMOS 1261 DEB, 35507

COSMOS 1261 DEB, 48264 (Decayed)

SL-6 R/B(2) Visibility forecast

Observer location: undefined°, undefined°

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.
151 mins	2025-07-01 08:28:33.336Z	257.414° W	2025-07-01 08:28:33.336Z	257.414° W	36.295°	2025-07-01 10:59:33.336Z	252.964° W
38 mins	2025-07-01 17:36:33.336Z	147.797° SSE	2025-07-01 17:48:33.336Z	86.755° E	30.988°	2025-07-01 18:14:33.336Z	28.158° NE
147 mins	2025-07-02 06:01:33.336Z	331.07° NNW	2025-07-02 07:09:33.336Z	280.485° WNW	41.216°	2025-07-02 08:28:33.336Z	248.795° W

Authenticating...

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Check out SL-6 R/B(2), 12384 on other resources

View SL-6 R/B(2), 12384 on Heavens-Above

View SL-6 R/B(2), 12384 on Keep Track

View SL-6 R/B(2), 12384 on Celestrak

View SL-6 R/B(2), 12384 on Gunter's Space Page

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