| Primary satellite | Secondary satellite |
| Name | STARS | HJ-1A |
| Spacetrack catalog number | 33498 | 33320 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Jun 03 16:58 | 2023 Jun 04 02:34 |
| Time of closest approach (UTC) | 2023 Apr 06 00:10:18.256 |
| Minimum distance | 343.501 km |
| Height difference | 0.378 km |
| Relative speed | 13.067 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 71.6°S, 44.2°W |
| Height | 655 km |
|