Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 06 25 06 00 00     -1.00000  114.96326  -24.96326  344.12347
2016 06 25 07 00 00     -1.00000  116.62559  -26.62559  359.30477
2016 06 25 08 00 00     -1.00000  115.23779  -25.23779   14.53780
2016 06 25 09 00 00     -1.00000  110.98808  -20.98808   28.77944
2016 06 25 10 00 00     -1.00000  104.37090  -14.37090   41.45519
2016 06 25 11 00 00     -1.00000   95.96619   -5.96619   52.53734
2016 06 25 12 00 00     12.50280   86.08409    3.91591   62.33290
2016 06 25 13 00 00      3.98235   75.67200   14.32800   71.28943
2016 06 25 14 00 00      2.32020   64.58251   25.41749   79.93178
2016 06 25 15 00 00      1.66537   53.17373   36.82627   88.93209
2016 06 25 16 00 00      1.33877   41.73582   48.26418   99.37095
2016 06 25 17 00 00      1.16254   30.72342   59.27658  113.48965
2016 06 25 18 00 00      1.07257   21.26637   68.73363  136.78102
2016 06 25 19 00 00      1.04334   16.65042   73.34958  177.74630
2016 06 25 20 00 00      1.06748   20.55169   69.44831  220.20505
2016 06 25 21 00 00      1.15106   29.74537   60.25463  244.83616
2016 06 25 22 00 00      1.31739   40.67956   49.32044  259.50210
2016 06 25 23 00 00      1.62528   52.10305   37.89695  270.16073
2016 06 26 00 00 00      2.23499   63.52954   26.47046  279.23898
2016 06 26 01 00 00      3.73337   74.66303   15.33697  287.88181
2016 06 26 02 00 00     10.60276   85.17093    4.82907  296.78441
2016 06 26 03 00 00     -1.00000   95.12180   -5.12180  306.48055
2016 06 26 04 00 00     -1.00000  103.67038  -13.67038  317.42618
2016 06 26 05 00 00     -1.00000  110.48419  -20.48419  329.94872
2016 06 26 06 00 00     -1.00000  114.98443  -24.98443  344.06325


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.