| Primary satellite | Secondary satellite |
| Name | COSMOS 1823 DEB | PUJIANG 2 (PJ-2) |
| Spacetrack catalog number | 39816 | 52151 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:29 | 2024 Dec 23 14:41 |
| Time of closest approach (UTC) | 2024 Dec 23 20:30:56.965 |
| Minimum distance | 0.781 km |
| Height difference | -0.541 km |
| Relative speed | 15.059 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 43.6°S, 54.5°W |
| Height | 599 km |
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