| Primary satellite | Secondary satellite |
| Name | Cosmos 1943 | COSMOS 1275 DEB |
| Spacetrack catalog number | 19119 | 42118 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 14 06:58 | 2021 Apr 12 21:12 |
| Time of closest approach (UTC) | 2021 Mar 01 11:10:09.982 |
| Minimum distance | 47.632 km |
| Height difference | 1.326 km |
| Relative speed | 14.325 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 33.5°N, 20.5°W |
| Height | 839 km |
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