| Primary satellite | Secondary satellite |
| Name | Meteor 1-21 | Feng Yun 1-B |
| Spacetrack catalog number | 7714 | 20788 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:48 | 2024 Dec 23 02:49 |
| Time of closest approach (UTC) | 2024 Dec 26 05:46:27.232 |
| Minimum distance | 4.346 km |
| Height difference | 3.907 km |
| Relative speed | 7.088 km/s |
| Angle between velocity vectors | 57° |
| Geographic position | 71.4°S, 174.5°W |
| Height | 909 km |
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