| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1898 Rocket |
| Spacetrack catalog number | 38725 | 18586 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 06:26 | 2024 Dec 23 04:07 |
| Time of closest approach (UTC) | 2024 Dec 30 00:57:27.890 |
| Minimum distance | 3.328 km |
| Height difference | 2.830 km |
| Relative speed | 14.432 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 70.9°S, 25.9°E |
| Height | 797 km |
|