| Primary satellite | Secondary satellite |
| Name | Okean 1 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 19275 | 34518 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 13:06 | 2021 Jan 17 11:54 |
| Time of closest approach (UTC) | 2020 Dec 08 07:17:38.978 |
| Minimum distance | 149.693 km |
| Height difference | 2.614 km |
| Relative speed | 14.824 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 60.5°S, 131.3°W |
| Height | 646 km |
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