swath: IW1
Bperp (average): -73.04839515336803
Bpar (average): 34.96207575142833
swath: IW2
Bperp (average): -70.00956881702042
Bpar (average): 40.59503093215207
swath: IW3
Bperp (average): -67.162979243879
Bpar (average): 45.09101308903732