| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SENTINEL 3A |
| Spacetrack catalog number | 34908 | 41335 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2023 Jan 28 16:43 | 2023 Jan 28 21:05 |
| Time of closest approach (UTC) | 2022 Dec 06 06:38:00.106 |
| Minimum distance | 116.648 km |
| Height difference | -2.158 km |
| Relative speed | 14.737 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 62.1°S, 32.0°E |
| Height | 828 km |
|