| Primary satellite | Secondary satellite |
| Name | Okean 1 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 19275 | 39595 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 19:25 | 2021 Jan 10 02:57 |
| Time of closest approach (UTC) | 2020 Dec 06 02:43:22.737 |
| Minimum distance | 153.638 km |
| Height difference | 4.014 km |
| Relative speed | 14.279 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 74.5°N, 136.3°E |
| Height | 633 km |
|