| Primary satellite | Secondary satellite |
| Name | Cosmos 1400 Rocket | CAPELLA-1 |
| Spacetrack catalog number | 13403 | 43791 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:37 | 2021 Mar 05 17:32 |
| Time of closest approach (UTC) | 2021 Jan 22 07:12:51.606 |
| Minimum distance | 112.731 km |
| Height difference | 0.913 km |
| Relative speed | 11.874 km/s |
| Angle between velocity vectors | 103° |
| Geographic position | 79.8°N, 92.5°E |
| Height | 581 km |
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