| Primary satellite | Secondary satellite |
| Name | Cosmos 1408 Rocket | deb Kosmos-2227 |
| Spacetrack catalog number | 13553 | 22438 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 11 19:54 | 2021 Apr 11 16:00 |
| Time of closest approach (UTC) | 2021 Mar 02 19:38:53.715 |
| Minimum distance | 500.540 km |
| Height difference | -3.021 km |
| Relative speed | 13.892 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 59.8°S, 149.2°E |
| Height | 623 km |
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