swath: IW1
Bperp (average): -158.5263236769725
Bpar (average): 128.58241739111747
swath: IW2
Bperp (average): -147.60915693338364
Bpar (average): 140.92185309545093
swath: IW3
Bperp (average): -137.67291664970844
Bpar (average): 150.5922260310988