| Primary satellite | Secondary satellite |
| Name | Nadezhda 1 Rocket | Meteor 2-19 Rocket |
| Spacetrack catalog number | 20104 | 20671 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 12 14:31 | 2021 Apr 13 02:52 |
| Time of closest approach (UTC) | 2021 Mar 03 01:17:45.098 |
| Minimum distance | 3.664 km |
| Height difference | -3.557 km |
| Relative speed | 13.177 km/s |
| Angle between velocity vectors | 127° |
| Geographic position | 73.6°S, 41.0°E |
| Height | 986 km |
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