| Primary satellite | Secondary satellite |
| Name | FAST 1 (USA 222) | CSL-04 DEB |
| Spacetrack catalog number | 37227 | 26448 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Sep 25 21:08 | 2023 Sep 26 04:40 |
| Time of closest approach (UTC) | 2023 Jun 11 08:29:26.716 |
| Minimum distance | 305.011 km |
| Height difference | -0.503 km |
| Relative speed | 15.030 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 19.5°S, 37.6°E |
| Height | 626 km |
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