| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Orbcomm 18 |
| Spacetrack catalog number | 35789 | 25419 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 06:14 |
| Time of closest approach (UTC) | 2024 Dec 29 15:16:57.715 |
| Minimum distance | 10.591 km |
| Height difference | 0.183 km |
| Relative speed | 7.019 km/s |
| Angle between velocity vectors | 56° |
| Geographic position | 44.0°S, 140.6°W |
| Height | 780 km |
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