| Primary satellite | Secondary satellite |
| Name | Cosmos 44 Rocket | ARIANE 5 R/B |
| Spacetrack catalog number | 877 | 28499 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 May 16 07:28 | 2025 May 16 10:45 |
| Time of closest approach (UTC) | 2025 May 02 20:15:55.858 |
| Minimum distance | 7.586 km |
| Height difference | 3.607 km |
| Relative speed | 12.651 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 65.1°N, 92.6°E |
| Height | 673 km |
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