swath: IW1
Bperp (average): 137.6779319882721
Bpar (average): -89.97651779049083
swath: IW2
Bperp (average): 130.17733950355415
Bpar (average): -100.78465736676426
swath: IW3
Bperp (average): 123.09141040785524
Bpar (average): -109.41948771879007