The experimental setup has been set at Tiruchirappalli India is between Tropic of Cancer and Equator on earth so altitude angle is measured from the south during the period the declination angle is greater than the latitude angle of the place. All other locations above the Tropic of Capricorn are in the southern hemisphere the latitude angle is measured only from the north. It will help us to change the direction of PDC in the north south direction. The maximum difference in the solar altitude angle at a given position of the PDC for the entire period of 15 days is only 6.036o. The PDC requires to be changed once in 15 days towards the north-south direction and can be optimized to change only after 45 days because the difference of altitude angle varies from 0o to 6.036o and the maximum difference in the solar altitude angle for the chosen position is 6.036o.