| Primary satellite | Secondary satellite |
| Name | STRAND 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39090 | 34570 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Feb 08 13:04 | 2023 Feb 07 20:36 |
| Time of closest approach (UTC) | 2022 Dec 11 02:31:58.767 |
| Minimum distance | 142.352 km |
| Height difference | -4.809 km |
| Relative speed | 14.222 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 71.0°N, 94.0°W |
| Height | 780 km |
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