| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | CZ-4 DEB |
| Spacetrack catalog number | 21419 | 35332 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 20:12 | 2021 Jan 13 10:25 |
| Time of closest approach (UTC) | 2020 Dec 04 12:49:04.242 |
| Minimum distance | 26.015 km |
| Height difference | 4.613 km |
| Relative speed | 9.632 km/s |
| Angle between velocity vectors | 80° |
| Geographic position | 70.3°N, 70.5°W |
| Height | 768 km |
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