swath: IW1
Bperp (average): 69.72933149170724
Bpar (average): -15.835784671127724
swath: IW2
Bperp (average): 68.11890072444893
Bpar (average): -21.435263764595092
swath: IW3
Bperp (average): 66.40012578671214
Bpar (average): -26.040395071612206