| Primary satellite | Secondary satellite |
| Name | Courier 1B Rocket | deb Kosmos-397 |
| Spacetrack catalog number | 59 | 5091 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 16 13:22 | 2021 Jan 16 07:26 |
| Time of closest approach (UTC) | 2020 Dec 01 11:00:20.282 |
| Minimum distance | 89.272 km |
| Height difference | 5.099 km |
| Relative speed | 8.137 km/s |
| Angle between velocity vectors | 69° |
| Geographic position | 27.6°N, 79.7°W |
| Height | 1199 km |
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