| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb GEOSAT 1 |
| Spacetrack catalog number | 34572 | 15615 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:57 | 2024 Dec 22 13:27 |
| Time of closest approach (UTC) | 2024 Dec 26 01:15:07.440 |
| Minimum distance | 3.118 km |
| Height difference | 2.941 km |
| Relative speed | 14.976 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 67.1°S, 161.6°E |
| Height | 734 km |
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