swath: IW1
Bperp (average): -74.17678146793394
Bpar (average): 115.3646606853348
swath: IW2
Bperp (average): -65.767201741303
Bpar (average): 120.59286828515827
swath: IW3
Bperp (average): -58.93287827336149
Bpar (average): 124.34358834646437