| Primary satellite | Secondary satellite |
| Name | Oscar 19 | Cosmos 923 Rocket |
| Spacetrack catalog number | 20442 | 10121 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 Dec 08 23:42 | 2025 Dec 09 00:57 |
| Time of closest approach (UTC) | 2024 Dec 11 14:07:14.751 |
| Minimum distance | 17.565 km |
| Height difference | -1.763 km |
| Relative speed | 14.863 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 45.8°N, 121.5°W |
| Height | 788 km |
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