swath: IW1
Bperp (average): -111.00386021385913
Bpar (average): 115.61275030118277
swath: IW2
Bperp (average): -101.5733938869388
Bpar (average): 124.00501676107474
swath: IW3
Bperp (average): -93.2348696115471
Bpar (average): 130.42366967104442