swath: IW1
Bperp (average): -137.50106047979378
Bpar (average): 147.99806538937136
swath: IW2
Bperp (average): -127.24427384774688
Bpar (average): 157.53451272838538
swath: IW3
Bperp (average): -119.11062582220691
Bpar (average): 164.5734713900755