| Primary satellite | Secondary satellite |
| Name | Cosmos 2366 rocket | deb Delta 139 |
| Spacetrack catalog number | 25893 | 12177 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jun 12 03:29 | 2025 Jun 11 20:26 |
| Time of closest approach (UTC) | 2025 May 20 11:55:32.428 |
| Minimum distance | 12.091 km |
| Height difference | -4.070 km |
| Relative speed | 13.669 km/s |
| Angle between velocity vectors | 137° |
| Geographic position | 81.0°S, 78.7°W |
| Height | 983 km |
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