| Primary satellite | Secondary satellite |
| Name | PEGASUS DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 39928 | 37535 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 00:30 | 2024 Dec 23 12:34 |
| Time of closest approach (UTC) | 2024 Dec 29 22:43:38.277 |
| Minimum distance | 28.385 km |
| Height difference | 2.746 km |
| Relative speed | 8.361 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 73.6°S, 143.5°W |
| Height | 714 km |
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