swath: IW1
Bperp (average): -275.9468289492181
Bpar (average): 104.85687526432761
swath: IW2
Bperp (average): -266.7639865047745
Bpar (average): 127.0851171725861
swath: IW3
Bperp (average): -257.6867153693293
Bpar (average): 145.21158993686367