| Primary satellite | Secondary satellite |
| Name | ESTCUBE 1 | Orbcomm F1 (FM01) |
| Spacetrack catalog number | 39161 | 23545 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2021 Feb 28 05:06 | 2021 Feb 27 22:39 |
| Time of closest approach (UTC) | 2021 Jan 20 15:01:19.748 |
| Minimum distance | 22.221 km |
| Height difference | -2.395 km |
| Relative speed | 8.455 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 63.8°N, 103.3°E |
| Height | 672 km |
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