| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | DMSP 5D-2 F11 DEB |
| Spacetrack catalog number | 21419 | 29069 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 20 04:34 | 2021 Jan 19 18:19 |
| Time of closest approach (UTC) | 2020 Dec 04 11:00:40.130 |
| Minimum distance | 6.795 km |
| Height difference | -0.101 km |
| Relative speed | 14.915 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 47.0°N, 77.8°W |
| Height | 775 km |
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