swath: IW1
Bperp (average): -126.47606010728975
Bpar (average): 139.10613544898285
swath: IW2
Bperp (average): -114.88671429241099
Bpar (average): 148.7800041762704
swath: IW3
Bperp (average): -104.58460309167761
Bpar (average): 156.15981337719595