swath: IW1
Bperp (average): -167.37083446872867
Bpar (average): 181.5146141313995
swath: IW2
Bperp (average): -152.35940989035586
Bpar (average): 194.10037858974022
swath: IW3
Bperp (average): -139.11462917768117
Bpar (average): 203.6441045778099