| Primary satellite | Secondary satellite |
| Name | Okean-O | FENGYUN 1C DEB |
| Spacetrack catalog number | 25860 | 31892 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 02 12:59 | 2021 Mar 02 07:46 |
| Time of closest approach (UTC) | 2021 Jan 21 23:43:21.654 |
| Minimum distance | 1.646 km |
| Height difference | -1.642 km |
| Relative speed | 1.009 km/s |
| Angle between velocity vectors | 8° |
| Geographic position | 77.9°N, 155.2°E |
| Height | 654 km |
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