| Primary satellite | Secondary satellite |
| Name | Okean-O | PEGASUS DEB |
| Spacetrack catalog number | 25860 | 39921 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 11 07:33 | 2021 Apr 10 00:01 |
| Time of closest approach (UTC) | 2021 Mar 06 03:35:43.910 |
| Minimum distance | 67.406 km |
| Height difference | 0.788 km |
| Relative speed | 13.848 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 81.2°N, 123.6°E |
| Height | 653 km |
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