swath: IW1
Bperp (average): 71.02883371188518
Bpar (average): 3.9546178223949418
swath: IW2
Bperp (average): 70.98169034518173
Bpar (average): -1.704749874398084
swath: IW3
Bperp (average): 70.72126150223411
Bpar (average): -6.4813337921792815