| Primary satellite | Secondary satellite |
| Name | Cosmos 836 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 8924 | 35453 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 21:15 | 2023 Sep 21 04:28 |
| Time of closest approach (UTC) | 2023 Jun 07 23:23:15.610 |
| Minimum distance | 1153.662 km |
| Height difference | 11.429 km |
| Relative speed | 13.939 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 29.8°S, 1.4°W |
| Height | 775 km |
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