| Primary satellite | Secondary satellite |
| Name | PRISM | COSMOS 2251 DEB |
| Spacetrack catalog number | 33493 | 40797 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 May 31 20:19 | 2023 May 31 20:19 |
| Time of closest approach (UTC) | 2023 Apr 04 00:50:22.251 |
| Minimum distance | 35.753 km |
| Height difference | -7.688 km |
| Relative speed | 15.084 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 55.3°N, 113.2°W |
| Height | 569 km |
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