| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NOAA 15 |
| Spacetrack catalog number | 35789 | 25338 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 07:26 |
| Time of closest approach (UTC) | 2024 Dec 28 10:15:38.944 |
| Minimum distance | 4.619 km |
| Height difference | 2.549 km |
| Relative speed | 14.847 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 7.5°S, 136.2°E |
| Height | 808 km |
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