| Primary satellite | Secondary satellite |
| Name | Oscar 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 20442 | 37340 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Dec 05 11:30 | 2023 Nov 30 00:03 |
| Time of closest approach (UTC) | 2023 Sep 22 10:27:34.272 |
| Minimum distance | 108.453 km |
| Height difference | -1.738 km |
| Relative speed | 10.371 km/s |
| Angle between velocity vectors | 88° |
| Geographic position | 72.0°N, 65.4°W |
| Height | 801 km |
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