| Primary satellite | Secondary satellite |
| Name | STRAND 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39090 | 34433 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jun 02 12:08 | 2023 Jun 02 06:12 |
| Time of closest approach (UTC) | 2023 Mar 31 14:14:14.994 |
| Minimum distance | 566.240 km |
| Height difference | 12.964 km |
| Relative speed | 14.818 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 48.0°N, 73.2°E |
| Height | 775 km |
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