| Primary satellite | Secondary satellite |
| Name | Cosmos 1939 Rocket | CXBN |
| Spacetrack catalog number | 19046 | 38762 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 May 13 21:56 | 2025 May 14 01:03 |
| Time of closest approach (UTC) | 2024 Jun 24 15:50:42.903 |
| Minimum distance | 3157.507 km |
| Height difference | 128.292 km |
| Relative speed | 15.057 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 42.6°S, 12.6°E |
| Height | 539 km |
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