swath: IW1
Bperp (average): -77.5983952405988
Bpar (average): 45.715945052547625
swath: IW2
Bperp (average): -73.52741734823233
Bpar (average): 51.63513403703984
swath: IW3
Bperp (average): -70.07416865941606
Bpar (average): 56.39306511943921