| Primary satellite | Secondary satellite |
| Name | Oscar 19 | COSMOS 1818 COOLANT |
| Spacetrack catalog number | 20442 | 50789 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 May 29 16:06 | 2023 May 14 08:18 |
| Time of closest approach (UTC) | 2023 Mar 30 06:53:08.727 |
| Minimum distance | 19.434 km |
| Height difference | 5.415 km |
| Relative speed | 14.772 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 14.2°N, 131.2°E |
| Height | 777 km |
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