| Primary satellite | Secondary satellite |
| Name | deb Atmosphere 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 20797 | 33990 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:55 | 2024 Dec 22 20:27 |
| Time of closest approach (UTC) | 2024 Dec 24 15:39:09.230 |
| Minimum distance | 3.968 km |
| Height difference | 3.763 km |
| Relative speed | 14.499 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 70.5°S, 38.1°E |
| Height | 858 km |
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