| Primary satellite | Secondary satellite |
| Name | Gonets-D1 | Kosmos-1620 |
| Spacetrack catalog number | 24726 | 15472 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2024 Sep 07 16:57 | 2024 Sep 07 23:10 |
| Time of closest approach (UTC) | 2024 Aug 05 15:45:28.500 |
| Minimum distance | 2.400 km |
| Height difference | -2.293 km |
| Relative speed | 13.772 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 61.6°N, 49.0°W |
| Height | 1426 km |
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