Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 05 23 21 00 00      1.18488   32.49874   57.50126  242.94959
2016 05 23 22 00 00      1.37276   43.30690   46.69310  257.62131
2016 05 23 23 00 00      1.72663   54.68850   35.31150  268.51091
2016 05 24 00 00 00      2.45935   66.12945   23.87055  277.83047
2016 05 24 01 00 00      4.46666   77.30784   12.69216  286.70474
2016 05 24 02 00 00     18.26144   87.76764    2.23236  295.85071
2016 05 24 03 00 00     -1.00000   97.92725   -7.92725  305.83900
2016 05 24 04 00 00     -1.00000  106.52930  -16.52930  317.17119
2016 05 24 05 00 00     -1.00000  113.33563  -23.33563  330.21419
2016 05 24 06 00 00     -1.00000  117.71941  -27.71941  344.97604
2016 05 24 07 00 00     -1.00000  119.13556  -29.13556    0.83898
2016 05 24 08 00 00     -1.00000  117.37690  -27.37690   16.63134
2016 05 24 09 00 00     -1.00000  112.69815  -22.69815   31.22008
2016 05 24 10 00 00     -1.00000  105.66546  -15.66546   44.06202
2016 05 24 11 00 00     -1.00000   96.90168   -6.90168   55.21858
2016 05 24 12 00 00     14.18709   86.70325    3.29675   65.07870
2016 05 24 13 00 00      4.09971   76.10434   13.89566   74.15059
2016 05 24 14 00 00      2.34545   64.87827   25.12173   83.01223
2016 05 24 15 00 00      1.67492   53.41926   36.58074   92.40383
2016 05 24 16 00 00      1.34545   42.05464   47.94536  103.51748
2016 05 24 17 00 00      1.16999   31.33293   58.66707  118.75260
2016 05 24 18 00 00      1.08255   22.58728   67.41272  143.31451
2016 05 24 19 00 00      1.05751   19.05551   70.94449  182.20811
2016 05 24 20 00 00      1.08832   23.30717   66.69283  219.88960
2016 05 24 21 00 00      1.18304   32.35832   57.64168  243.16848


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.