| Primary satellite | Secondary satellite |
| Name | Cosmos 540 Rocket | CSL-04 DEB |
| Spacetrack catalog number | 6324 | 26442 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 19 16:20 | 2023 Mar 20 11:04 |
| Time of closest approach (UTC) | 2023 Feb 08 10:44:23.001 |
| Minimum distance | 477.920 km |
| Height difference | 2.587 km |
| Relative speed | 13.553 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 72.8°S, 122.1°W |
| Height | 770 km |
|