Norad ID: 63521
| Nazwa w katalogu Spacetrack | SL-4 R/B |
| Wyniesienie na orbitę |
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| Data deorbitacji |
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| Dni na orbicie | 2 |
| Kraj/organizacja pochodzenia | Commonwealth of Independent States (former USSR) (CIS) |
| Miejsce startu | TYMSC (Baikonur Cosmodrome, Kazakhstan) |
| Perygeum | 156 km |
| Apogeum | 166 km |
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.