swath: IW1
Bperp (average): 135.0347237107703
Bpar (average): -91.40587962931696
swath: IW2
Bperp (average): 127.32306507708351
Bpar (average): -101.88761974391508
swath: IW3
Bperp (average): 120.15622788728491
Bpar (average): -110.2521850940151