Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 05 27 08 00 00     -1.00000  116.89034  -26.89034   16.41245
2016 05 27 09 00 00     -1.00000  112.26132  -22.26132   30.90808
2016 05 27 10 00 00     -1.00000  105.28374  -15.28374   43.69155
2016 05 27 11 00 00     -1.00000   96.57122   -6.57122   54.81176
2016 05 27 12 00 00     13.39346   86.42921    3.57079   64.64337
2016 05 27 13 00 00      4.02986   75.85010   14.14990   73.68323
2016 05 27 14 00 00      2.32536   64.64358   25.35642   82.49983
2016 05 27 15 00 00      1.66599   53.18990   36.81010   91.82336
2016 05 27 16 00 00      1.34030   41.80929   48.19071  102.83446
2016 05 27 17 00 00      1.16633   31.03584   58.96416  117.93432
2016 05 27 18 00 00      1.07941   22.18232   67.81768  142.47157
2016 05 27 19 00 00      1.05430   18.54331   71.45669  182.01323
2016 05 27 20 00 00      1.08450   22.83365   67.16635  220.40835
2016 05 27 21 00 00      1.17784   31.95578   58.04422  243.77074
2016 05 27 22 00 00      1.36183   42.81497   47.18503  258.34355
2016 05 27 23 00 00      1.70676   54.21237   35.78763  269.13401
2016 05 28 00 00 00      2.41402   65.64710   24.35290  278.37751
2016 05 28 01 00 00      4.30568   76.80537   13.19463  287.19288
2016 05 28 02 00 00     16.11901   87.26758    2.73242  296.28732
2016 05 28 03 00 00     -1.00000   97.34729   -7.34729  306.21992
2016 05 28 04 00 00     -1.00000  105.90417  -15.90417  317.47799
2016 05 28 05 00 00     -1.00000  112.67019  -22.67019  330.41283
2016 05 28 06 00 00     -1.00000  117.03163  -27.03163  345.02470
2016 05 28 07 00 00     -1.00000  118.45653  -28.45653    0.71130
2016 05 28 08 00 00     -1.00000  116.74081  -26.74081   16.33924


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.