| Primary satellite | Secondary satellite |
| Name | COSMOS 1823 DEB | APRIZESAT 9 |
| Spacetrack catalog number | 39816 | 40018 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:29 | 2024 Dec 23 09:16 |
| Time of closest approach (UTC) | 2024 Dec 24 08:26:39.295 |
| Minimum distance | 4.262 km |
| Height difference | 3.450 km |
| Relative speed | 14.050 km/s |
| Angle between velocity vectors | 137° |
| Geographic position | 73.1°N, 109.0°W |
| Height | 637 km |
|