| Primary satellite | Secondary satellite |
| Name | Cosmos 1782 Rocket | COSMOS 2535 DEB |
| Spacetrack catalog number | 16987 | 44640 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 23 21:48 | 2021 Jan 22 01:31 |
| Time of closest approach (UTC) | 2020 Dec 08 03:33:28.173 |
| Minimum distance | 3.628 km |
| Height difference | -1.183 km |
| Relative speed | 15.125 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 80.2°N, 159.0°W |
| Height | 627 km |
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