| Primary satellite | Secondary satellite |
| Name | Cosmos 1300 Rocket | BEIJING 3B |
| Spacetrack catalog number | 12786 | 53587 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 19:11 | 2024 Dec 23 11:47 |
| Time of closest approach (UTC) | 2024 Dec 26 10:12:35.340 |
| Minimum distance | 3.621 km |
| Height difference | -3.186 km |
| Relative speed | 15.068 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 47.9°S, 1.8°W |
| Height | 637 km |
|