| Primary satellite | Secondary satellite |
Name | Cosmos 1821 Rocket | THORAD AGENA D DEB |
Spacetrack catalog number | 17526 | 42535 |
Radar cross section | large | small |
Epoch of two-line elements (UTC) | 2021 Apr 17 07:47 | 2021 Apr 17 10:55 |
Time of closest approach (UTC) | 2021 Mar 04 04:34:06.242 |
Minimum distance | 6.851 km |
Height difference | 5.424 km |
Relative speed | 14.672 km/s |
Angle between velocity vectors | 175° |
Geographic position | 57.1°S, 67.2°E |
Height | 1007 km |
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