Sentinel 1 relative orbit from filename

Microwave Toolbox
2

Hi, The equation Relative Orbit Number = mod (Absolute Orbit Number orbit - 73, 175) + 1 is only applicable to S1-A. The corresponding equation for S1-B is

Relative Orbit Number = mod (Absolute Orbit Number orbit - 27, 175) + 1

so for your S1-B example, orbit 7231 gives a relative orbit of 30 as expected.

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