| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | CSL-04 Debris |
| Spacetrack catalog number | 23088 | 25733 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Oct 01 08:33 | 2023 Oct 01 13:24 |
| Time of closest approach (UTC) | 2023 Jun 03 18:52:08.521 |
| Minimum distance | 319.874 km |
| Height difference | -2.744 km |
| Relative speed | 14.684 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 57.2°S, 175.8°W |
| Height | 866 km |
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