SL-3 R/B, 11963
Orbit data source: Space-Track
SL-3 R/B, 11963 is space debris in LEO originally from a launch on Tue, 09 Sep 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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11963 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Progress
Mission
Spacecraft
Bus & Motor
BLOK-E, Unknown motor
Mass
1,440 kg wet, 1,440 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 SL-3 R/B
1 11963U 80073B 25300.53398963 .00000315 00000-0 16591-3 0 9998
2 11963 81.2795 43.3353 0076075 70.7448 290.1932 14.10131291320622Epoch: 2025-10-27T12:48Z
TLE epoch observation values (Epoch: 2025-10-27T12:48:56.704Z)
Latitude
-0.00007°
Longitude
174.96456°
Altitude
843.185 km
Speed
7.441 km/s
True Right ascension
02h 53m 20s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
20:10:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
911.129 km
Perigee altitude
801.06 km
Semi-major axis
7,234.232 km
Eccentricity
0.00761
Inclination
81.2795°
RAAN
43.3353°
Arg. of periapsis
70.7448°
True anomaly
289.37236°
Mean anomaly
290.1932°
Eccentric anomaly
289.78305°
Mean motion
3.5274 °/min
Orbital period
102.06 mins
BSTAR
0.00016591
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Other satellites on launch #73 in the year 1980 (1980-09-09 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SL-3 R/B 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-10-28 07:39:34.554Z | 180.895° SSW | 2025-10-28 07:44:34.554Z | 53.362° ENE | 43.428° | 2025-10-28 07:48:34.554Z | 13.384° NNE |
| 9 mins | 2025-10-28 18:20:34.554Z | 4.313° NNE | 2025-10-28 18:24:34.554Z | 69.321° E | 38.79° | 2025-10-28 18:29:34.554Z | 152.876° SSE |
| 5 mins | 2025-10-28 20:05:34.554Z | 297.181° NW | 2025-10-28 20:07:34.554Z | 271.042° WNW | 17.199° | 2025-10-28 20:10:34.554Z | 236.35° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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