| Primary satellite | Secondary satellite |
| Name | Cosmos 1814 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 17304 | 35446 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 29 04:13 | 2023 Sep 28 18:51 |
| Time of closest approach (UTC) | 2023 Jun 04 05:53:17.680 |
| Minimum distance | 1.068 km |
| Height difference | -1.054 km |
| Relative speed | 13.780 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 45.4°N, 82.4°E |
| Height | 751 km |
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