Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 04 25 06 00 00     -1.00000  125.05697  -35.05697  342.68632
2017 04 25 07 00 00     -1.00000  126.71993  -36.71993    0.61576
2017 04 25 08 00 00     -1.00000  124.79197  -34.79197   18.47393
2017 04 25 09 00 00     -1.00000  119.62565  -29.62565   34.63682
2017 04 25 10 00 00     -1.00000  111.98077  -21.98077   48.47215
2017 04 25 11 00 00     -1.00000  102.63083  -12.63083   60.22994
2017 04 25 12 00 00     -1.00000   92.18070   -2.18070   70.51929
2017 04 25 13 00 00      6.14015   80.97206    9.02794   80.01156
2017 04 25 14 00 00      2.84780   69.58755   20.41245   89.39810
2017 04 25 15 00 00      1.89042   58.15223   31.84777   99.49919
2017 04 25 16 00 00      1.46679   47.08635   42.91365  111.51235
2017 04 25 17 00 00      1.25223   37.06654   52.93346  127.45204
2017 04 25 18 00 00      1.14769   29.44934   60.55066  150.37493
2017 04 25 19 00 00      1.11734   26.55614   63.44386  181.14869
2017 04 25 20 00 00      1.15210   29.83629   60.16371  211.54944
2017 04 25 21 00 00      1.26236   37.67269   52.32731  233.91675
2017 04 25 22 00 00      1.48637   47.78657   42.21343  249.51332
2017 04 25 23 00 00      1.92994   58.88277   31.11723  261.35595
2017 04 26 00 00 00      2.94652   70.31182   19.68818  271.38849
2017 04 26 01 00 00      6.60089   81.65818    8.34182  280.77186
2017 04 26 02 00 00     -1.00000   92.81479   -2.81479  290.31126
2017 04 26 03 00 00     -1.00000  103.17197  -13.17197  300.69252
2017 04 26 04 00 00     -1.00000  112.38488  -22.38488  312.58057
2017 04 26 05 00 00     -1.00000  119.83678  -29.83678  326.56139
2017 04 26 06 00 00     -1.00000  124.75216  -34.75216  342.82627


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.