| Primary satellite | Secondary satellite |
| Name | SJ-7 | STARLINK-3647 |
| Spacetrack catalog number | 28737 | 51994 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:04 | 2024 Dec 23 12:39 |
| Time of closest approach (UTC) | 2024 Dec 24 07:08:24.672 |
| Minimum distance | 4.086 km |
| Height difference | 0.116 km |
| Relative speed | 14.651 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 15.2°S, 15.9°W |
| Height | 544 km |
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