| Primary satellite | Secondary satellite |
| Name | Cosmos 2366 rocket | Altair 2 |
| Spacetrack catalog number | 25893 | 2120 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Jun 12 03:29 | 2025 Jun 12 13:42 |
| Time of closest approach (UTC) | 2025 May 15 09:51:29.723 |
| Minimum distance | 2.100 km |
| Height difference | 1.975 km |
| Relative speed | 14.068 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 77.4°S, 21.1°W |
| Height | 983 km |
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