The below script will populate your data table with values from the Table Variables. I have also attached a new version of your Test data table. The one you had attached had a formula in one of the columns, which did not permit the table to populate.
Names Default To Here( 1 );
dt = Current Data Table();
tableVarNamesList = dt << get table variable names;
For( i = 1, i <= N Items( tableVarNamesList ), i++,
dt << add rows( 1 );
Column( dt, "target[0].target__reflectance_pc" )[i] =
Num( Word( 2, tableVarNamesList[i], "," ) );
Column( dt, "Ambient_level W/m2" )[i] =
Num( Word( 3, tableVarNamesList[i], "," ) );
Column( dt, "zone_id_r" )[i] = Num(
Word( 4, tableVarNamesList[i], ",)" )
);
Column( dt, "result" )[i] = Num(
dt << get table variable( tableVarNamesList[i] )
);
);
Jim