| Primary satellite | Secondary satellite |
| Name | Oscar 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 20442 | 34022 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Jun 03 21:45 | 2023 Jun 03 20:00 |
| Time of closest approach (UTC) | 2023 Apr 06 23:26:56.504 |
| Minimum distance | 31.344 km |
| Height difference | 2.343 km |
| Relative speed | 14.634 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 68.6°N, 138.0°W |
| Height | 787 km |
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