| Primary satellite | Secondary satellite |
| Name | deb Kosmos- 1980 | deb Kosmos-397 |
| Spacetrack catalog number | 20301 | 5414 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 05:05 | 2024 Dec 22 20:57 |
| Time of closest approach (UTC) | 2024 Dec 28 08:25:51.515 |
| Minimum distance | 1.763 km |
| Height difference | 0.854 km |
| Relative speed | 11.850 km/s |
| Angle between velocity vectors | 106° |
| Geographic position | 53.5°S, 51.9°E |
| Height | 852 km |
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