DECAYED

SL-4 R/B, 63521 (Decayed)

Orbit data source: Space-Track

SL-4 R/B, 63521 was space debris in LEO originally from a launch on Tue, 08 Apr 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.

Not visible in the next 10 days
Identifier
63521, 2025-072B
Orbit
Decayed
Last TLE update
3 weeks ago
Origin
Manufacturer
TsSKB-Progress
Mission
Decayed spacecraft
Bus & Motor
BLOK-I, RD-0110
Mass
2,350 kg wet, 2,350 kg dry
Launch date (UTC)
2025-04-08 (3 weeks ago)
Launch vehicle
Unknown
Launch site
Tyuratam Missile And Space Complex (TTMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)

Expand to show TLE details & history

TLE from 3 weeks ago
0 SL-4 R/B
1 63521U 25072B   25099.97072997  .11558378  12466-4  66070-3 0  9991
2 63521  51.6521 283.9113 0007095  81.8811  43.3667 16.41802781   281
Epoch: 2025-04-09T23:17Z
Definitive object data (Epoch: 2025-04-09T23:17:51.069Z)
Latitude
39.93223°
Longitude
-125.18016°
Altitude
161.024 km
Speed
7.817 km/s
True Right ascension
04h 10m 55s
True Declination
39° 44' 51"
Sunlit
Object was in daylight at TLE epoch
Visualization observer readout
Visualization observer readout
Orbital elements
Apogee altitude
166.177 km
Perigee altitude
156.897 km
Semi-major axis
6,539.674 km
Eccentricity
0.0007095
Inclination
51.6521°
RAAN
283.9113°
Arg. of periapsis
81.8811°
True anomaly
43.42256°
Mean anomaly
43.3667°
Eccentric anomaly
43.39463°
Mean motion
4.10402 °/min
BSTAR
0.0006607
Orbital period
87.72 mins
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Other satellites on launch #72 in the year 2025 (2025-04-08 UTC)

SL-4 R/B Visibility forecast

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This satellite is decayed
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