swath: IW1
Bperp (average): -118.85569256550905
Bpar (average): 111.10537807770307
swath: IW2
Bperp (average): -111.74512359878123
Bpar (average): 119.54418721073604
swath: IW3
Bperp (average): -105.80001814112485
Bpar (average): 125.48417037967981