| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SENTINEL-2C |
| Spacetrack catalog number | 35959 | 60989 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 15:36 | 2024 Dec 23 04:39 |
| Time of closest approach (UTC) | 2024 Dec 24 12:16:14.227 |
| Minimum distance | 4.799 km |
| Height difference | -4.026 km |
| Relative speed | 14.766 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 57.0°S, 167.0°E |
| Height | 816 km |
|