| Primary satellite | Secondary satellite |
| Name | Kosmos-2004 | CZ-4C R/B |
| Spacetrack catalog number | 19826 | 36123 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2026 Feb 02 12:34 | 2026 Feb 02 12:17 |
| Time of closest approach (UTC) | 2020 Oct 16 00:38:33.324 |
| Minimum distance | 359.209 km |
| Height difference | 201.365 km |
| Relative speed | 14.543 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 53.7°N, 143.8°E |
| Height | 1008 km |
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