| Primary satellite | Secondary satellite |
| Name | Cosmos 1975 | deb Kosmos-249 |
| Spacetrack catalog number | 19573 | 14417 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 23 10:26 | 2021 Jan 23 09:24 |
| Time of closest approach (UTC) | 2020 Dec 04 20:58:58.955 |
| Minimum distance | 290.927 km |
| Height difference | 6.013 km |
| Relative speed | 3.002 km/s |
| Angle between velocity vectors | 23° |
| Geographic position | 26.9°S, 6.0°W |
| Height | 562 km |
|