| Primary satellite | Secondary satellite |
| Name | MOS 1 | deb Delta 139 |
| Spacetrack catalog number | 17527 | 14465 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 21:28 | 2021 Jan 16 23:51 |
| Time of closest approach (UTC) | 2020 Dec 03 12:03:17.172 |
| Minimum distance | 13.612 km |
| Height difference | -3.848 km |
| Relative speed | 14.087 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 60.3°N, 111.9°E |
| Height | 890 km |
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