| Primary satellite | Secondary satellite |
| Name | COSMOS 2428 | deb Kosmos-1375 |
| Spacetrack catalog number | 31792 | 18477 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 14 19:14 | 2021 Apr 14 02:19 |
| Time of closest approach (UTC) | 2021 Mar 04 17:37:50.730 |
| Minimum distance | 67.598 km |
| Height difference | 0.796 km |
| Relative speed | 5.848 km/s |
| Angle between velocity vectors | 46° |
| Geographic position | 65.5°N, 67.9°E |
| Height | 860 km |
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