| 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 27 04:04:21.460 |
| Minimum distance | 26.074 km |
| Height difference | -0.417 km |
| Relative speed | 14.911 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 59.6°N, 133.1°W |
| Height | 628 km |
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