Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 07 02 10 00 00     -1.00000  104.80107  -14.80107   41.39149
2015 07 02 11 00 00     -1.00000   96.40194   -6.40194   52.53713
2015 07 02 12 00 00     13.59010   86.49981    3.50019   62.38104
2015 07 02 13 00 00      4.09854   76.10014   13.89986   71.37596
2015 07 02 14 00 00      2.35669   65.00771   24.99229   80.05109
2015 07 02 15 00 00      1.68195   53.59754   36.40246   89.08036
2015 07 02 16 00 00      1.34774   42.16287   47.83713   99.53862
2015 07 02 17 00 00      1.16786   31.16026   58.83974  113.63015
2015 07 02 18 00 00      1.07583   21.70839   68.29161  136.66665
2015 07 02 19 00 00      1.04527   17.00215   72.99785  176.80325
2015 07 02 20 00 00      1.06845   20.68960   69.31040  218.99935
2015 07 02 21 00 00      1.15119   29.75734   60.24266  243.93436
2015 07 02 22 00 00      1.31669   40.64421   49.35579  258.81533
2015 07 02 23 00 00      1.62362   52.05709   37.94291  269.59314
2015 07 03 00 00 00      2.23215   63.49297   26.50703  278.73638
2015 07 03 01 00 00      3.73034   74.64992   15.35008  287.41271
2015 07 03 02 00 00     10.64232   85.19302    4.80698  296.32956
2015 07 03 03 00 00     -1.00000   95.19306   -5.19306  306.02919
2015 07 03 04 00 00     -1.00000  103.80308  -13.80308  316.97665
2015 07 03 05 00 00     -1.00000  110.68986  -20.68986  329.51203
2015 07 03 06 00 00     -1.00000  115.26890  -25.26890  343.66555
2015 07 03 07 00 00     -1.00000  117.01653  -27.01653  358.92653
2015 07 03 08 00 00     -1.00000  115.69533  -25.69533   14.26899
2015 07 03 09 00 00     -1.00000  111.48691  -21.48691   28.62445
2015 07 03 10 00 00     -1.00000  104.88868  -14.88868   41.39784


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.