swath: IW1
Bperp (average): -73.61831954731525
Bpar (average): 109.21806767767964
swath: IW2
Bperp (average): -64.77513856546047
Bpar (average): 114.56304828915357
swath: IW3
Bperp (average): -57.047158792280435
Bpar (average): 118.67836463610776