Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 09 27 15 00 00      2.56522   67.18402   22.81598  113.62622
2016 09 27 16 00 00      1.84440   57.25429   32.74571  126.34384
2016 09 27 17 00 00      1.52269   49.01922   40.98078  142.05037
2016 09 27 18 00 00      1.37871   43.56933   46.43067  161.43843
2016 09 27 19 00 00      1.34565   42.06395   47.93605  183.45838
2016 09 27 20 00 00      1.41054   44.91603   45.08397  204.91663
2016 09 27 21 00 00      1.59970   51.38322   38.61678  223.13665
2016 09 27 22 00 00      2.01008   60.26133   29.73867  237.77808
2016 09 27 23 00 00      2.98241   70.56255   19.43745  249.76777
2016 09 28 00 00 00      6.56267   81.60485    8.39515  260.16798
2016 09 28 01 00 00     -1.00000   93.15552   -3.15552  269.87688
2016 09 28 02 00 00     -1.00000  104.60604  -14.60604  279.69091
2016 09 28 03 00 00     -1.00000  115.70479  -25.70479  290.45399
2016 09 28 04 00 00     -1.00000  125.97054  -35.97054  303.22251
2016 09 28 05 00 00     -1.00000  134.63713  -44.63713  319.33536
2016 09 28 06 00 00     -1.00000  140.50008  -50.50008  339.88806
2016 09 28 07 00 00     -1.00000  142.15850  -52.15850    3.84617
2016 09 28 08 00 00     -1.00000  139.08230  -49.08230   27.08415
2016 09 28 09 00 00     -1.00000  132.20474  -42.20474   46.23202
2016 09 28 10 00 00     -1.00000  122.94507  -32.94507   61.16943
2016 09 28 11 00 00     -1.00000  112.36754  -22.36754   73.19956
2016 09 28 12 00 00     -1.00000  101.13161  -11.13161   83.58622
2016 09 28 13 00 00     27.88304   89.17087    0.82913   93.30471
2016 09 28 14 00 00      4.79994   78.24041   11.75959  103.16725
2016 09 28 15 00 00      2.58837   67.40214   22.59786  113.98650


Latitude:
-90.0 to +90.0, Negative for South, Positive for North.

Longitude:
-180.0 to +180.0, Negative for East, Positive for West.

Start Date:
Enter start date in the format yyyy-MM-dd HH:mm [UTC]

End Date:
Enter end date in the format yyyy-MM-dd HH:mm [UTC]

Interval:
The internal (in seconds) between successive solar calculations.

Date Format:
Examples:
yyyy/MM-dd_DDD hh:mm:ss aa
yyyyMMdd[DDD]HHmmss
Air mass
If the sun is below the horizon, Air mass = -1.0000. Toggle the checkbox to enable/disable column in report.

Air mass Calculation
Airmass = 1.0/(cos(90 - elev) + 0.50572 * (6.07995 + elev)-1.6364)

Solar Zenith Angle
Solar elevation in Degrees from zenith (90°). Angles are corrected for atmospheric diffraction. Toggle the checkbox to enable/disable column in report.

Elevation:
Solar elevation in Degrees above horizon (0 degrees). Angles are corrected for atmospheric diffraction. Toggle the checkbox to enable/disable column in report.

Azimuth:
Sun azimuth, 0° = N, 90° = E, 180° = S, 270° = W. Toggle the checkbox to enable/disable column in report.