| Primary satellite | Secondary satellite |
| Name | FO-99 | COSMOS 1408 DEB |
| Spacetrack catalog number | 43937 | 51562 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jun 06 01:51 | 2023 Jun 06 16:24 |
| Time of closest approach (UTC) | 2023 Apr 01 16:20:47.557 |
| Minimum distance | 2358.089 km |
| Height difference | -32.867 km |
| Relative speed | 13.641 km/s |
| Angle between velocity vectors | 126° |
| Geographic position | 64.0°N, 30.6°E |
| Height | 463 km |
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