| Primary satellite | Secondary satellite |
| Name | COSMOS 1823 DEB | CZ-4C R/B |
| Spacetrack catalog number | 39816 | 43264 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:29 | 2024 Dec 23 04:49 |
| Time of closest approach (UTC) | 2024 Dec 23 23:31:29.824 |
| Minimum distance | 2.350 km |
| Height difference | 0.801 km |
| Relative speed | 13.943 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 73.5°S, 169.8°E |
| Height | 613 km |
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