swath: IW1
Bperp (average): -126.253560718479
Bpar (average): 125.04783725239137
swath: IW2
Bperp (average): -116.89660034301927
Bpar (average): 134.3743974235372
swath: IW3
Bperp (average): -108.98990373587414
Bpar (average): 141.48270013171987