| Primary satellite | Secondary satellite |
| Name | Cosmos 1934 Rocket | deb Kosmos-1275 |
| Spacetrack catalog number | 18986 | 12699 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 19:21 | 2021 Jan 22 22:23 |
| Time of closest approach (UTC) | 2020 Dec 08 23:14:55.080 |
| Minimum distance | 6.766 km |
| Height difference | -0.257 km |
| Relative speed | 13.850 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 68.2°N, 129.2°E |
| Height | 1012 km |
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