| Primary satellite | Secondary satellite |
| Name | SL-27 R/B | Cosmos 1633 |
| Spacetrack catalog number | 40354 | 15592 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Dec 05 03:01 | 2023 Dec 04 08:32 |
| Time of closest approach (UTC) | 2023 Sep 24 16:28:31.745 |
| Minimum distance | 5059.723 km |
| Height difference | -3.522 km |
| Relative speed | 13.149 km/s |
| Angle between velocity vectors | 118° |
| Geographic position | 41.2°N, 22.2°W |
| Height | 420 km |
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