Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 07 05 09 00 00     -1.00000  111.67812  -21.67812   28.61661
2015 07 05 10 00 00     -1.00000  105.07871  -15.07871   41.42481
2015 07 05 11 00 00     -1.00000   96.67296   -6.67296   52.60858
2015 07 05 12 00 00     14.32914   86.74939    3.25061   62.48157
2015 07 05 13 00 00      4.17042   76.35290   13.64710   71.50109
2015 07 05 14 00 00      2.37850   65.25494   24.74506   80.20025
2015 07 05 15 00 00      1.69172   53.84232   36.15768   89.25579
2015 07 05 16 00 00      1.35305   42.41095   47.58905   99.74236
2015 07 05 17 00 00      1.17108   31.42080   58.57920  113.84851
2015 07 05 18 00 00      1.07795   21.98988   68.01012  136.78379
2015 07 05 19 00 00      1.04675   17.26492   72.73508  176.42402
2015 07 05 20 00 00      1.06955   20.84530   69.15470  218.32203
2015 07 05 21 00 00      1.15211   29.83729   60.16271  243.37988
2015 07 05 22 00 00      1.31766   40.69344   49.30656  258.38055
2015 07 05 23 00 00      1.62512   52.09872   37.90128  269.23154
2015 07 06 00 00 00      2.23579   63.53985   26.46015  278.41783
2015 07 06 01 00 00      3.74445   74.71086   15.28914  287.11917
2015 07 06 02 00 00     10.78877   85.27349    4.72651  296.05035
2015 07 06 03 00 00     -1.00000   95.30492   -5.30492  305.75931
2015 07 06 04 00 00     -1.00000  103.95064  -13.95064  316.71736
2015 07 06 05 00 00     -1.00000  110.87818  -20.87818  329.27268
2015 07 06 06 00 00     -1.00000  115.49870  -25.49870  343.46408
2015 07 06 07 00 00     -1.00000  117.28145  -27.28145  358.78365
2015 07 06 08 00 00     -1.00000  115.98254  -25.98254   14.19649
2015 07 06 09 00 00     -1.00000  111.78209  -21.78209   28.61872


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.