| Primary satellite | Secondary satellite |
| Name | Cosmos 836 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 8924 | 37994 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 30 07:18 | 2023 Oct 01 05:01 |
| Time of closest approach (UTC) | 2023 Jun 05 22:28:36.670 |
| Minimum distance | 546.841 km |
| Height difference | 1.601 km |
| Relative speed | 11.895 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 66.0°N, 31.0°W |
| Height | 768 km |
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