| Primary satellite | Secondary satellite |
| Name | STRAND 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39090 | 33762 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jun 08 12:00 | 2023 Jun 08 13:20 |
| Time of closest approach (UTC) | 2023 Apr 06 05:00:12.965 |
| Minimum distance | 32.720 km |
| Height difference | 1.270 km |
| Relative speed | 3.498 km/s |
| Angle between velocity vectors | 27° |
| Geographic position | 26.2°S, 26.4°E |
| Height | 788 km |
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