swath: IW1
Bperp (average): -66.80232071946595
Bpar (average): 99.48334203675473
swath: IW2
Bperp (average): -59.02335341975097
Bpar (average): 104.33089886083327
swath: IW3
Bperp (average): -52.39262949345617
Bpar (average): 107.86468884039417