| Primary satellite | Secondary satellite |
| Name | GP-B | CZ-2D R/B |
| Spacetrack catalog number | 28230 | 43486 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 06 06:56 | 2023 Dec 06 02:12 |
| Time of closest approach (UTC) | 2023 Sep 30 02:35:51.250 |
| Minimum distance | 857.315 km |
| Height difference | -3.772 km |
| Relative speed | 12.326 km/s |
| Angle between velocity vectors | 110° |
| Geographic position | 75.9°N, 157.4°W |
| Height | 644 km |
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