swath: IW1
Bperp (average): 150.367944004045
Bpar (average): -89.87773258687868
swath: IW2
Bperp (average): 142.92072585916142
Bpar (average): -101.76829396135132
swath: IW3
Bperp (average): 135.83598064333455
Bpar (average): -111.26336483961374