Specification of model

θ = 0˚

θ = 5˚

θ = 10˚

θ = 15˚

model_0˚

model_5˚

model_10˚

model_15˚

θ = 20˚

θ = 25˚

θ = 30˚

θ = 35˚

θ = 40˚

θ = 45˚

model_20˚

model_25˚

model_30˚

model_35˚

model_40˚

model_45˚