| Primary satellite | Secondary satellite |
| Name | deb Kosmos-397 | CZ-6A DEB |
| Spacetrack catalog number | 21723 | 54436 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:16 | 2024 Dec 22 13:43 |
| Time of closest approach (UTC) | 2024 Dec 25 07:06:24.654 |
| Minimum distance | 4.922 km |
| Height difference | 0.594 km |
| Relative speed | 14.576 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 29.6°S, 167.9°E |
| Height | 843 km |
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