swath: IW1
Bperp (average): -23.0368553783515
Bpar (average): 44.559129406109705
swath: IW2
Bperp (average): -20.29515371443887
Bpar (average): 45.808005955766646
swath: IW3
Bperp (average): -18.169085320867932
Bpar (average): 46.85271199661839