| Primary satellite | Secondary satellite |
| Name | CAS-6 | Cosmos 1151 Rocket |
| Spacetrack catalog number | 44881 | 11672 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Mar 07 16:19 | 2021 Mar 07 17:36 |
| Time of closest approach (UTC) | 2021 Jan 17 14:14:34.377 |
| Minimum distance | 2.093 km |
| Height difference | -0.953 km |
| Relative speed | 15.088 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 80.5°N, 2.9°E |
| Height | 630 km |
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