| Primary satellite | Secondary satellite |
| Name | FO-99 | COSMOS 1408 DEB |
| Spacetrack catalog number | 43937 | 49663 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2023 Jun 05 13:28 | 2023 Jun 05 18:29 |
| Time of closest approach (UTC) | 2023 Apr 06 00:10:52.274 |
| Minimum distance | 1584.645 km |
| Height difference | 42.633 km |
| Relative speed | 14.775 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 65.9°S, 56.2°W |
| Height | 462 km |
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