swath: IW1
Bperp (average): -18.852907573678877
Bpar (average): 53.881912713050404
swath: IW2
Bperp (average): -18.1244539680443
Bpar (average): 54.30325896023896
swath: IW3
Bperp (average): -18.607030914355104
Bpar (average): 54.338359949935615