swath: IW1
Bperp (average): 139.143671566815
Bpar (average): -59.29038362917138
swath: IW2
Bperp (average): 133.58423704000575
Bpar (average): -70.38127851084646
swath: IW3
Bperp (average): 128.0070507087933
Bpar (average): -79.32575439074236