| Primary satellite | Secondary satellite |
| Name | Cosmos 1782 Rocket | NANOSAT 1B |
| Spacetrack catalog number | 16987 | 35685 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 23 21:48 | 2021 Jan 24 01:59 |
| Time of closest approach (UTC) | 2020 Dec 09 00:11:09.415 |
| Minimum distance | 2.640 km |
| Height difference | 1.716 km |
| Relative speed | 15.113 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 2.2°N, 119.5°E |
| Height | 612 km |
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