| Primary satellite | Secondary satellite |
| Name | Cosmos 1666 Rocket | NOAA 17 DEB |
| Spacetrack catalog number | 15890 | 48759 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:44 | 2024 Dec 20 00:12 |
| Time of closest approach (UTC) | 2024 Dec 29 00:50:31.267 |
| Minimum distance | 2.572 km |
| Height difference | 0.357 km |
| Relative speed | 15.100 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 23.0°N, 96.6°E |
| Height | 622 km |
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