| Primary satellite | Secondary satellite |
| Name | RS-44 | Kosmos-1640 |
| Spacetrack catalog number | 44909 | 15622 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2022 Aug 07 09:36 | 2022 Aug 07 12:25 |
| Time of closest approach (UTC) | 2022 Jul 08 15:29:27.626 |
| Minimum distance | 4.543 km |
| Height difference | -2.263 km |
| Relative speed | 13.848 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 32.4°N, 127.5°W |
| Height | 1434 km |
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