swath: IW1
Bperp (average): 71.98258978704256
Bpar (average): -47.702044203142506
swath: IW2
Bperp (average): 67.96632086195558
Bpar (average): -53.15636412730465
swath: IW3
Bperp (average): 64.32060996914434
Bpar (average): -57.54496466649104