| Primary satellite | Secondary satellite |
| Name | Cosmos 1459 Rocket | UME 1 |
| Spacetrack catalog number | 14059 | 8709 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Nov 17 16:21 | 2025 Nov 17 17:05 |
| Time of closest approach (UTC) | 2025 Oct 14 15:09:06.767 |
| Minimum distance | 4.198 km |
| Height difference | 3.970 km |
| Relative speed | 4.681 km/s |
| Angle between velocity vectors | 37° |
| Geographic position | 64.6°S, 92.0°W |
| Height | 1005 km |
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