Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 03 05 00 00 00      5.83540   80.45995    9.54005  253.50416
2015 03 05 01 00 00     -1.00000   91.78779   -1.78779  263.34676
2015 03 05 02 00 00     -1.00000  103.25046  -13.25046  272.98633
2015 03 05 03 00 00     -1.00000  114.60495  -24.60495  283.23214
2015 03 05 04 00 00     -1.00000  125.44207  -35.44207  295.10707
2015 03 05 05 00 00     -1.00000  135.12177  -45.12177  310.05461
2015 03 05 06 00 00     -1.00000  142.53779  -52.53779  329.83623
2015 03 05 07 00 00     -1.00000  146.04741  -56.04741  354.83207
2015 03 05 08 00 00     -1.00000  144.42867  -54.42867   20.99840
2015 03 05 09 00 00     -1.00000  138.28924  -48.28924   42.91029
2015 03 05 10 00 00     -1.00000  129.30199  -39.30199   59.49601
2015 03 05 11 00 00     -1.00000  118.80114  -28.80114   72.33487
2015 03 05 12 00 00     -1.00000  107.57332  -17.57332   83.04904
2015 03 05 13 00 00     -1.00000   96.09163   -6.09163   92.79949
2015 03 05 14 00 00      9.59359   84.54968    5.45032  102.45231
2015 03 05 15 00 00      3.52250   73.69418   16.30582  112.77928
2015 03 05 16 00 00      2.24241   63.62488   26.37512  124.59883
2015 03 05 17 00 00      1.74129   55.03127   34.96873  138.80428
2015 03 05 18 00 00      1.51651   48.81511   41.18489  156.07662
2015 03 05 19 00 00      1.43819   46.01419   43.98581  176.02913
2015 03 05 20 00 00      1.47164   47.26242   42.73758  196.52811
2015 03 05 21 00 00      1.63103   52.26076   37.73924  214.99133
2015 03 05 22 00 00      1.99693   60.04397   29.95603  230.35347
2015 03 05 23 00 00      2.85224   69.62124   20.37876  243.00889
2015 03 06 00 00 00      5.71506   80.24292    9.75708  253.83181


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.