1-Latitude
2-Longitude
3-Tilt angle
4-Azimuth angle
5-The number of a specific day in the year
1-Declination angle
2-Day lengh
3-Sunrise and sunset times
4-Maximum irradience
5-MAximum incidence angle
6-Maximum solar altitude angle
in that specific day.
1-The rate of irradiance
2-Solar altitude angle
3-Solar Azimuth angle
4-Solar zenith angle
will be calculated from sunrise to sunset.
1-Local Latitude
2-Local Longitude
3-Standard Longitude
4-Zenith angle
5-The angle between panel and rooftop (Beta)
1-Anuual variation of solar irradience on earth in each month
2-Anuual variation of solar irradience out of earth atmosphere in each month
3-Annual declination angle in each day
4-Annual day lenght
5-The time of Sunset and sunrise in each day
6-Annual variation of solar declination in each month
Examples are calculated for longitude and latitude of Tehran in April 15th.