swath: IW1
Bperp (average): 134.12653668958922
Bpar (average): -74.46268619818933
swath: IW2
Bperp (average): 127.55547315122195
Bpar (average): -84.99588207177764
swath: IW3
Bperp (average): 121.44374692006015
Bpar (average): -93.45833171674309