| Primary satellite | Secondary satellite |
| Name | NANOSAT-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 28493 | 34062 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 20:25 | 2023 Oct 01 23:42 |
| Time of closest approach (UTC) | 2023 Jun 15 01:30:58.135 |
| Minimum distance | 630.180 km |
| Height difference | 9.452 km |
| Relative speed | 15.044 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 70.9°N, 169.2°W |
| Height | 658 km |
|