| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 Rocket | METEOR 2-5 DEB |
| Spacetrack catalog number | 15890 | 35254 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:44 | 2024 Dec 22 09:29 |
| Time of closest approach (UTC) | 2024 Dec 24 07:35:57.370 |
| Minimum distance | 4.562 km |
| Height difference | -4.096 km |
| Relative speed | 14.930 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 11.8°N, 2.7°E |
| Height | 627 km |
|