swath: IW1
Bperp (average): 141.85565000392634
Bpar (average): -37.29480088598182
swath: IW2
Bperp (average): 138.31998552342318
Bpar (average): -48.65779877151587
swath: IW3
Bperp (average): 134.6262820830953
Bpar (average): -57.98447095132249