| Primary satellite | Secondary satellite |
| Name | deb HAPS | COSMOS 2251 DEB |
| Spacetrack catalog number | 24091 | 34954 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 19:04 | 2024 Dec 21 00:27 |
| Time of closest approach (UTC) | 2024 Dec 26 15:03:58.666 |
| Minimum distance | 1.387 km |
| Height difference | -1.054 km |
| Relative speed | 13.985 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 56.6°S, 121.3°W |
| Height | 602 km |
|