| Primary satellite | Secondary satellite |
| Name | Cosmos 2237 Rocket | DMSP 5D-3 F18 DEB |
| Spacetrack catalog number | 22566 | 35954 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 13:00 | 2021 Mar 05 19:43 |
| Time of closest approach (UTC) | 2021 Jan 19 08:19:17.829 |
| Minimum distance | 18.413 km |
| Height difference | -3.397 km |
| Relative speed | 14.476 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 62.5°S, 170.0°E |
| Height | 861 km |
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