| 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 Sep 24 03:28 | 2023 Sep 24 13:39 |
| Time of closest approach (UTC) | 2023 Jun 03 18:50:46.423 |
| Minimum distance | 120.951 km |
| Height difference | -3.355 km |
| Relative speed | 14.684 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 52.7°S, 170.1°W |
| Height | 864 km |
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