swath: IW1
Bperp (average): 139.2029169193902
Bpar (average): -25.587853981562176
swath: IW2
Bperp (average): 136.61300225497857
Bpar (average): -36.88962758412734
swath: IW3
Bperp (average): 133.71094106773737
Bpar (average): -46.22941997169987