SL-8 R/B, 3577
Orbit data source: Space-Track
SL-8 R/B, 3577 is space debris in LEO originally from a launch on Sat, 30 Nov 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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3577 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Yuzhnoe
Mission
Spacecraft
Bus & Motor
S3, Unknown motor
Mass
1,434 kg wet, 1,434 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 2.1 m
Radar Cross Section
10.179 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 SL-8 R/B
1 03577U 68106B 25260.85119929 .00000163 00000-0 45769-3 0 9996
2 03577 74.0528 37.3517 0034183 76.7364 35.6404 13.19118137733480Epoch: 2025-09-17T20:25Z
TLE epoch observation values (Epoch: 2025-09-17T20:25:43.618Z)
Latitude
62.67567°
Longitude
-119.48486°
Altitude
1,177.493 km
Speed
7.281 km/s
True Right ascension
12h 15m 52s
True Declination
62° 32' 35"
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
12:36:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,211.7 km
Perigee altitude
1,159.988 km
Semi-major axis
7,563.981 km
Eccentricity
0.00342
Inclination
74.0528°
RAAN
37.3517°
Arg. of periapsis
76.7364°
True anomaly
35.86944°
Mean anomaly
35.6404°
Eccentric anomaly
35.75484°
Mean motion
3.29927 °/min
Orbital period
109.12 mins
BSTAR
0.00045769
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Other satellites on launch #106 in the year 1968 (1968-11-30 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-8 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2025-09-18 20:05:45.152Z | 347.25° N | 2025-09-18 20:12:45.152Z | 74.725° E | 41.926° | 2025-09-18 20:19:45.152Z | 149.331° SSE |
| 8 mins | 2025-09-18 21:59:45.152Z | 301.403° NW | 2025-09-18 22:03:45.152Z | 260.03° W | 20.864° | 2025-09-18 22:07:45.152Z | 223.199° SW |
| 4 mins | 2025-09-19 08:25:45.152Z | 104.49° ESE | 2025-09-19 08:27:45.152Z | 87.009° E | 12.794° | 2025-09-19 08:29:45.152Z | 69.956° E |
| 13 mins | 2025-09-19 10:11:45.152Z | 194.457° SSW | 2025-09-19 10:17:45.152Z | 70.085° E | 44.875° | 2025-09-19 10:24:45.152Z | 20.075° NNE |
| 7 mins | 2025-09-19 12:06:45.152Z | 277.68° WNW | 2025-09-19 12:09:45.152Z | 306.648° NW | 17.846° | 2025-09-19 12:13:45.152Z | 343.959° N |
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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