| Primary satellite | Secondary satellite |
| Name | PDD Test Mass | KKS-1 |
| Spacetrack catalog number | 20564 | 33499 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:27 | 2024 Dec 23 04:06 |
| Time of closest approach (UTC) | 2024 Dec 23 18:27:18.565 |
| Minimum distance | 3.672 km |
| Height difference | -1.256 km |
| Relative speed | 1.901 km/s |
| Angle between velocity vectors | 15° |
| Geographic position | 55.0°S, 95.3°W |
| Height | 649 km |
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