| Primary satellite | Secondary satellite |
| Name | Cosmos 1812 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 17296 | 34051 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 02 10:40 | 2023 Oct 01 22:20 |
| Time of closest approach (UTC) | 2023 Jun 09 21:54:35.677 |
| Minimum distance | 1811.850 km |
| Height difference | -21.247 km |
| Relative speed | 14.680 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 15.0°S, 97.5°E |
| Height | 611 km |
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