| Primary satellite | Secondary satellite |
| Name | COSMOS 1823 DEB | CZ-4C DEB |
| Spacetrack catalog number | 39816 | 37567 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:29 | 2024 Dec 23 12:25 |
| Time of closest approach (UTC) | 2024 Dec 24 13:03:32.317 |
| Minimum distance | 5.162 km |
| Height difference | -1.342 km |
| Relative speed | 15.035 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 43.4°N, 86.6°E |
| Height | 616 km |
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