| Primary satellite | Secondary satellite |
| Name | deb Kosmos-397 | YAOGAN 3 |
| Spacetrack catalog number | 21723 | 32289 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:16 | 2024 Dec 23 08:00 |
| Time of closest approach (UTC) | 2024 Dec 23 19:53:28.315 |
| Minimum distance | 2.892 km |
| Height difference | -1.220 km |
| Relative speed | 14.692 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 51.3°N, 178.9°W |
| Height | 615 km |
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