| Primary satellite | Secondary satellite |
| Name | DUCHIFAT 1 | STARLINK-3173 |
| Spacetrack catalog number | 40021 | 51111 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Sep 15 21:01 | 2024 Sep 16 03:43 |
| Time of closest approach (UTC) | 2024 Aug 06 21:58:31.377 |
| Minimum distance | 627.765 km |
| Height difference | 10.242 km |
| Relative speed | 14.627 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 32.0°S, 74.1°W |
| Height | 540 km |
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