| 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 Jan 19 13:43 | 2025 Jan 19 13:35 |
| Time of closest approach (UTC) | 2024 Dec 11 14:08:42.945 |
| Minimum distance | 5.981 km |
| Height difference | -3.116 km |
| Relative speed | 14.867 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 43.3°N, 122.9°W |
| Height | 788 km |
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