| Primary satellite | Secondary satellite |
| Name | Cosmos 372 Rocket | ERS-1 Rocket |
| Spacetrack catalog number | 4589 | 21610 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 24 11:06 | 2021 Jan 24 10:13 |
| Time of closest approach (UTC) | 2020 Dec 06 02:35:08.149 |
| Minimum distance | 30.997 km |
| Height difference | -0.453 km |
| Relative speed | 10.258 km/s |
| Angle between velocity vectors | 87° |
| Geographic position | 71.4°S, 39.0°W |
| Height | 784 km |
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