| Primary satellite | Secondary satellite |
| Name | Tiros 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 29 | 34882 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Nov 06 12:46 | 2025 Nov 05 22:54 |
| Time of closest approach (UTC) | 2025 Oct 22 17:48:17.578 |
| Minimum distance | 4.396 km |
| Height difference | 3.864 km |
| Relative speed | 10.996 km/s |
| Angle between velocity vectors | 93° |
| Geographic position | 42.8°N, 170.7°W |
| Height | 641 km |
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