swath: IW1
Bperp (average): 137.71963807079607
Bpar (average): -27.377454448728823
swath: IW2
Bperp (average): 134.88168962394388
Bpar (average): -38.520227244205394
swath: IW3
Bperp (average): 131.76837991541115
Bpar (average): -47.70088422452626