swath: IW1
Bperp (average): -104.83671785692326
Bpar (average): 130.15733753689764
swath: IW2
Bperp (average): -94.0891513419704
Bpar (average): 138.09770154061908
swath: IW3
Bperp (average): -84.60015425564568
Bpar (average): 144.07967246225556