| 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 18:44 | 2021 Jan 25 20:48 |
| Time of closest approach (UTC) | 2020 Dec 04 17:22:42.623 |
| Minimum distance | 5.115 km |
| Height difference | -2.454 km |
| Relative speed | 14.825 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 54.7°S, 137.1°E |
| Height | 774 km |
|