| Primary satellite | Secondary satellite |
| Name | Oscar 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 20442 | 36060 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 May 29 16:06 | 2023 May 28 09:33 |
| Time of closest approach (UTC) | 2023 Mar 30 15:30:16.748 |
| Minimum distance | 71.094 km |
| Height difference | -2.293 km |
| Relative speed | 14.760 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 65.0°N, 15.2°W |
| Height | 785 km |
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