swath: IW1
Bperp (average): -57.45633485491604
Bpar (average): 37.58107839957857
swath: IW2
Bperp (average): -54.15559905686227
Bpar (average): 42.05531072752894
swath: IW3
Bperp (average): -51.15891403300341
Bpar (average): 45.62257893193519