swath: IW1
Bperp (average): -79.3653435988981
Bpar (average): 128.25125008564865
swath: IW2
Bperp (average): -68.87429813898144
Bpar (average): 134.1490208224882
swath: IW3
Bperp (average): -59.7514722997487
Bpar (average): 138.4278535440538