SL-8 R/B, 3131

Orbit data source: Space-Track

SL-8 R/B, 3131 is space debris in LEO originally from a launch on Tue, 20 Feb 1968 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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Identifier
3131, 1968-011B
Orbit
LEO
Last TLE update
11 hours ago
Origin
Manufacturer
Yuzhnoe
Mission
Spacecraft
Bus & Motor
S3, Unknown motor
Mass
1,434 kg wet, 1,434 kg dry
Launch date (UTC)
1968-02-20 (57 years ago)
Launch vehicle
Unknown
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 4.2 m
Radar Cross Section
10.179 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 11 hours ago
0 SL-8 R/B
1 03131U 68011B   25182.68954679 -.00000161  00000-0 -36381-3 0  9990
2 03131  74.0516 278.9241 0014462 196.6367 163.4249 13.18025919759178
Epoch: 2025-07-01T16:32Z
TLE epoch observation values (Epoch: 2025-07-01T16:32:56.842Z)
Latitude
-0.00006°
Longitude
110.70585°
Altitude
1,205.233 km
Speed
7.247 km/s
True Right ascension
18h 35m 41s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
69.16982°
Longitude
-118.36803°
Altitude
1,204.268 km
Speed
7.258 km/s
Apparent Right ascension
03h 33m 41s
Apparent Declination
21° 30' 54"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
15:41:33
Azimuth
2.086° NNE
Elevation
-28.541°
Doppler factor
1
Orbital elements
Apogee altitude
1,200.97 km
Perigee altitude
1,179.08 km
Semi-major axis
7,568.162 km
Eccentricity
0.00145
Inclination
74.0516°
RAAN
278.9241°
Arg. of periapsis
196.6367°
True anomaly
Unknown
Mean anomaly
163.4249°
Eccentric anomaly
Unknown
Mean motion
3.29653 °/min
Orbital period
109.21 mins
BSTAR
-0.00036381
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Other satellites on launch #11 in the year 1968 (1968-02-20 UTC)

SL-8 R/B 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.
13 mins2025-07-02 07:13:13.611Z180.551° SSW2025-07-02 07:19:13.611Z118.094° SE41.316°2025-07-02 07:26:13.611Z26.554° NE
10 mins2025-07-02 09:07:13.611Z258.68° W2025-07-02 09:11:13.611Z299.595° NW23.98°2025-07-02 09:17:13.611Z356.627° N
11 mins2025-07-02 16:49:13.611Z0.986° NNE2025-07-02 16:54:13.611Z58.212° ENE32.692°2025-07-02 17:00:13.611Z126.62° SE
12 mins2025-07-02 18:40:13.611Z321.557° NNW2025-07-02 18:46:13.611Z252.71° W31.667°2025-07-02 18:52:13.611Z196.631° SSW
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