What is the red apparent reflectance value for a Lambertian soil pixel that is measured with a satellite view angle of 20 and a sun angle of 30? The sun-earth distance is 1.0004 in astronomical units. The spectral irradiance value is 1100W/m^2, the radiance is 110W/m^2/sr/m at the sensor. Show your work. hint: rho=D pi L/(E cos(theta))