| 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 28 22:09 | 2023 May 27 20:56 |
| Time of closest approach (UTC) | 2023 Apr 04 00:52:21.226 |
| Minimum distance | 209.489 km |
| Height difference | -13.909 km |
| Relative speed | 15.089 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 61.1°N, 116.8°W |
| Height | 572 km |
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