| Primary satellite | Secondary satellite |
| Name | NOAA 15 | COSMOS 2251 DEB |
| Spacetrack catalog number | 25338 | 33986 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jun 02 20:18 | 2023 Jun 02 05:40 |
| Time of closest approach (UTC) | 2023 Mar 26 11:09:15.545 |
| Minimum distance | 505.895 km |
| Height difference | -6.752 km |
| Relative speed | 14.080 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 77.8°N, 80.8°E |
| Height | 821 km |
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