| Primary satellite | Secondary satellite |
Name | Cosmos 921 Rocket | FENGYUN 1C DEB |
Spacetrack catalog number | 10096 | 31077 |
Radar cross section | large | small |
Epoch of two-line elements (UTC) | 2021 Jan 15 11:35 | 2021 Jan 14 12:58 |
Time of closest approach (UTC) | 2020 Dec 07 19:14:07.609 |
Minimum distance | 2.835 km |
Height difference | -1.467 km |
Relative speed | 15.157 km/s |
Angle between velocity vectors | 174° |
Geographic position | 31.0°N, 70.0°E |
Height | 593 km |
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