swath: IW1
Bperp (average): -131.55074960954425
Bpar (average): 118.8933236520776
swath: IW2
Bperp (average): -121.61222184399126
Bpar (average): 129.09319354679235
swath: IW3
Bperp (average): -112.72505979460179
Bpar (average): 137.00249551289497