| Primary satellite | Secondary satellite |
| Name | CZ-4 DEB | Cosmos 1771 |
| Spacetrack catalog number | 35319 | 16917 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 01:36 | 2024 Dec 23 02:42 |
| Time of closest approach (UTC) | 2024 Dec 29 00:46:17.468 |
| Minimum distance | 3.172 km |
| Height difference | -3.167 km |
| Relative speed | 14.162 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 51.6°S, 150.4°E |
| Height | 1004 km |
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