| Primary satellite | Secondary satellite |
| Name | FO-99 | Cosmos 1633 |
| Spacetrack catalog number | 43937 | 15592 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2023 Jun 06 01:51 | 2023 Jun 06 09:47 |
| Time of closest approach (UTC) | 2023 Apr 07 12:25:02.568 |
| Minimum distance | 1326.081 km |
| Height difference | 9.112 km |
| Relative speed | 14.626 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 73.3°N, 51.5°W |
| Height | 436 km |
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