| Primary satellite | Secondary satellite |
| Name | Cosmos 372 Rocket | ERS 2 DEB |
| Spacetrack catalog number | 4589 | 35393 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 12:05 | 2021 Jan 25 09:43 |
| Time of closest approach (UTC) | 2020 Dec 04 18:12:39.271 |
| Minimum distance | 11.319 km |
| Height difference | 1.091 km |
| Relative speed | 14.846 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 54.3°N, 55.2°W |
| Height | 762 km |
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