swath: IW1
Bperp (average): 131.0752993087406
Bpar (average): -86.22890252979937
swath: IW2
Bperp (average): 123.81234596274462
Bpar (average): -96.65217352697069
swath: IW3
Bperp (average): 117.01759369728113
Bpar (average): -104.91043944463384