| Primary satellite | Secondary satellite |
| Name | Okean O Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 25861 | 31733 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 12 12:31 | 2021 Apr 12 10:45 |
| Time of closest approach (UTC) | 2021 Mar 07 01:04:37.844 |
| Minimum distance | 101.330 km |
| Height difference | -4.341 km |
| Relative speed | 13.043 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 72.0°N, 104.4°E |
| Height | 643 km |
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