swath: IW1
Bperp (average): -53.523847339589786
Bpar (average): 40.732769335899526
swath: IW2
Bperp (average): -50.0801469945256
Bpar (average): 44.881938817243224
swath: IW3
Bperp (average): -46.95032738857044
Bpar (average): 48.139000166335926