| Primary satellite | Secondary satellite |
| Name | Meteor 1-14 Rocket | Explorer 20 |
| Spacetrack catalog number | 6393 | 870 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Apr 13 02:35 | 2021 Apr 13 16:28 |
| Time of closest approach (UTC) | 2021 Mar 01 07:07:15.049 |
| Minimum distance | 55.656 km |
| Height difference | -3.237 km |
| Relative speed | 13.595 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 65.8°S, 158.0°E |
| Height | 934 km |
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