SL-4 R/B, 65587 (Decayed)
Orbit data source: Space-Track
SL-4 R/B, 65587 was space debris in LEO originally from a launch on Thu, 11 Sep 2025 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
65587 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
CISRelated business
None
Manufacturer
TsSKB-Progress
Mission
Decayed spacecraft
Bus & Motor
BLOK-I, RD-0980
Mass
~2,350 kg wet, 2,350 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 6 days ago
TLE from 6 days ago
0 SL-4 R/B
1 65587U 25204B 25254.90075412 .00594588 12038-4 16965-3 0 9997
2 65587 51.6579 238.0772 0024230 75.6431 284.7277 16.25950101 43Epoch: 2025-09-11T21:37Z
TLE epoch observation values (Epoch: 2025-09-11T21:37:05.155Z)
Latitude
-0.00011°
Longitude
-77.35055°
Altitude
200.196 km
Speed
7.79 km/s
True Right ascension
15h 52m 18s
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
12:36:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
219.916 km
Perigee altitude
188.019 km
Semi-major axis
6,582.104 km
Eccentricity
0.00242
Inclination
51.6579°
RAAN
238.0772°
Arg. of periapsis
75.6431°
True anomaly
284.45896°
Mean anomaly
284.7277°
Eccentric anomaly
284.59335°
Mean motion
4.0644 °/min
Orbital period
88.57 mins
BSTAR
0.00016965
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #204 in the year 2025 (2025-09-11 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SL-4 R/B Visibility
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| This satellite is decayed. |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|