| Primary satellite | Secondary satellite |
| Name | Cosmos 1939 Rocket | PROMETHEUS 2-3 |
| Spacetrack catalog number | 19046 | 41855 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jul 04 21:20 | 2022 Jul 04 22:16 |
| Time of closest approach (UTC) | 2022 May 26 05:50:45.902 |
| Minimum distance | 316.085 km |
| Height difference | -5.791 km |
| Relative speed | 13.693 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 74.6°N, 146.8°E |
| Height | 582 km |
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