| Primary satellite | Secondary satellite |
| Name | FAST 2 (USA 228) | CZ-4C R/B |
| Spacetrack catalog number | 37380 | 49010 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Feb 05 21:54 | 2023 Feb 05 19:27 |
| Time of closest approach (UTC) | 2022 Dec 13 11:38:24.107 |
| Minimum distance | 32.892 km |
| Height difference | -2.597 km |
| Relative speed | 11.772 km/s |
| Angle between velocity vectors | 102° |
| Geographic position | 71.4°S, 145.9°E |
| Height | 655 km |
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