swath: IW1
Bperp (average): 129.0466890950612
Bpar (average): -89.89384198210553
swath: IW2
Bperp (average): 121.45303747001076
Bpar (average): -99.73384613867762
swath: IW3
Bperp (average): 114.55506063874971
Bpar (average): -107.61884844075556