swath: IW1
Bperp (average): -157.20138870430318
Bpar (average): 124.42112119837297
swath: IW2
Bperp (average): -146.43519716481023
Bpar (average): 136.50081312263973
swath: IW3
Bperp (average): -136.8873160442249
Bpar (average): 146.02971792377497