I have a rooftop system with multiple orientations--same tilt, but two different azimuths. There is a single GHI sensor installed which I have pulled the operating data from. The only recorded data I have is GHI, E_Grid, and T_amb. I would like to convert this GHI data to POA for both orientations (two POA outputs), or as a single, weighted POA (one POA output, or as PVsyst calls it--GlobInc) for the entire system. Is there a straightforward method of performing this conversion? To my understanding, the data will need to be decomposed into various components and then transposed in order to get POA.