swath: IW1
Bperp (average): 30.451976173394
Bpar (average): -58.67367919117493
swath: IW2
Bperp (average): 26.29661552844
Bpar (average): -60.75864884286549
swath: IW3
Bperp (average): 23.061686383567945
Bpar (average): -62.1865851698932