| Primary satellite | Secondary satellite |
| Name | Cosmos 2154 Rocket | COSMOS 1275 DEB |
| Spacetrack catalog number | 21667 | 42098 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Nov 29 08:40 | 2023 Nov 19 23:37 |
| Time of closest approach (UTC) | 2023 Oct 09 01:48:39.326 |
| Minimum distance | 128.000 km |
| Height difference | 5.844 km |
| Relative speed | 14.195 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 60.6°N, 144.6°W |
| Height | 1007 km |
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