swath: IW1
Bperp (average): 142.38809922092688
Bpar (average): -102.92452043182304
swath: IW2
Bperp (average): 133.55676514349653
Bpar (average): -114.12324636145104
swath: IW3
Bperp (average): 125.44639830290537
Bpar (average): -122.97110985034097