Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 06 25 05 00 00     -1.00000  110.47308  -20.47308  330.02411
2017 06 25 06 00 00     -1.00000  114.95917  -24.95917  344.13723
2017 06 25 07 00 00     -1.00000  116.61881  -26.61881  359.31739
2017 06 25 08 00 00     -1.00000  115.22864  -25.22864   14.54829
2017 06 25 09 00 00     -1.00000  110.97714  -20.97714   28.78739
2017 06 25 10 00 00     -1.00000  104.35880  -14.35880   41.46077
2017 06 25 11 00 00     -1.00000   95.95340   -5.95340   52.54100
2017 06 25 12 00 00     12.47229   86.07147    3.92853   62.33509
2017 06 25 13 00 00      3.97886   75.65875   14.34125   71.29054
2017 06 25 14 00 00      2.31907   64.56915   25.43085   79.93212
2017 06 25 15 00 00      1.66485   53.16032   36.83968   88.93202
2017 06 25 16 00 00      1.33849   41.72237   48.27763   99.37117
2017 06 25 17 00 00      1.16238   30.71001   59.28999  113.49235
2017 06 25 18 00 00      1.07248   21.25372   68.74628  136.79420
2017 06 25 19 00 00      1.04329   16.64234   73.35766  177.78430
2017 06 25 20 00 00      1.06748   20.55114   69.44886  220.24372
2017 06 25 21 00 00      1.15109   29.74863   60.25137  244.86282
2017 06 25 22 00 00      1.31748   40.68416   49.31584  259.52183
2017 06 25 23 00 00      1.62546   52.10792   37.89208  270.17695
2017 06 26 00 00 00      2.23534   63.53411   26.46589  279.25344
2017 06 26 01 00 00      3.73426   74.66689   15.33311  287.89550
2017 06 26 02 00 00     10.60761   85.17364    4.82636  296.79797
2017 06 26 03 00 00     -1.00000   95.12311   -5.12311  306.49439
2017 06 26 04 00 00     -1.00000  103.66976  -13.66976  317.44045
2017 06 26 05 00 00     -1.00000  110.48118  -20.48118  329.96323


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.