swath: IW1
Bperp (average): -21.52642477117499
Bpar (average): 57.25666120280251
swath: IW2
Bperp (average): -17.01896120889131
Bpar (average): 58.735028232562875
swath: IW3
Bperp (average): -13.249873417826619
Bpar (average): 59.679790977408636