swath: IW1
Bperp (average): -129.45238896194292
Bpar (average): 127.79167917952441
swath: IW2
Bperp (average): -120.35181681547243
Bpar (average): 137.18269247531634
swath: IW3
Bperp (average): -112.51003450460274
Bpar (average): 143.89645473536197