extracting data from a matrix/table with specific index

This sheet represent calculation of hydrogen flow from through the porous membrane as a

function of time. The flow is experimentaly measured ("measuredFlow") and calculated from current (CurrentData), in order to compare yield. Notes reperesent temperature at certain time.

I want to correlate flow at the certain temperature, at a certain time.

This is performed by "CoolingIndex". The data in CoolingIndex table are acctually indexes

of the "absFlow", which is the flow at the certain time, at a certain temperature. And I want to extract only absFlow data with the index k.

The values in the CoolingIndex table are as they should be, when i perform this in Excell (manually). But somehow, the values of k are not the same as values in the CoolingIndex table. Where I am making a mistake? How can I obtain k, the same as the values in the CoolingIndex table.

Thanks!