| Primary satellite | Secondary satellite |
| Name | Lacrosse 5 | COSMOS 2251 DEB |
| Spacetrack catalog number | 28646 | 36046 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2021 Apr 02 19:22 | 2021 Apr 18 19:26 |
| Time of closest approach (UTC) | 2021 Mar 07 01:40:58.306 |
| Minimum distance | 35.778 km |
| Height difference | -4.846 km |
| Relative speed | 10.712 km/s |
| Angle between velocity vectors | 91° |
| Geographic position | 52.0°S, 141.5°E |
| Height | 739 km |
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