swath: IW1
Bperp (average): -38.749480705863384
Bpar (average): 111.42111193791665
swath: IW2
Bperp (average): -31.065481351738722
Bpar (average): 113.86575742247948
swath: IW3
Bperp (average): -25.456815963546976
Bpar (average): 115.3231949382612