| Primary satellite | Secondary satellite |
| Name | CZ-4C R/B | Cosmos 304 Rocket |
| Spacetrack catalog number | 54701 | 4139 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:02 | 2024 Dec 23 03:04 |
| Time of closest approach (UTC) | 2024 Dec 25 11:51:54.876 |
| Minimum distance | 3.613 km |
| Height difference | 1.055 km |
| Relative speed | 10.695 km/s |
| Angle between velocity vectors | 91° |
| Geographic position | 55.1°S, 163.0°E |
| Height | 695 km |
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