| Primary satellite | Secondary satellite |
| Name | Oscar 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 20442 | 35287 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2022 Aug 06 20:38 | 2022 Aug 06 20:03 |
| Time of closest approach (UTC) | 2022 Jun 28 14:24:06.645 |
| Minimum distance | 8.015 km |
| Height difference | 0.813 km |
| Relative speed | 9.001 km/s |
| Angle between velocity vectors | 74° |
| Geographic position | 68.9°S, 168.4°E |
| Height | 810 km |
|