| Primary satellite | Secondary satellite |
| Name | Cosmos 1953 | TIANHUI 2-02B |
| Spacetrack catalog number | 19210 | 49072 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Jul 17 09:49 | 2025 Jul 16 19:00 |
| Time of closest approach (UTC) | 2024 Jul 25 03:57:12.640 |
| Minimum distance | 65.419 km |
| Height difference | 19.457 km |
| Relative speed | 15.213 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 50.9°N, 161.8°W |
| Height | 512 km |
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