swath: IW1
Bperp (average): -129.95665073985413
Bpar (average): 116.65749367728586
swath: IW2
Bperp (average): -121.19008072526468
Bpar (average): 127.00632160625044
swath: IW3
Bperp (average): -113.5032599561858
Bpar (average): 135.17467835428837