Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 09 04 14 00 00      3.52367   73.69988   16.30012   94.29953
2015 09 04 15 00 00      2.15178   62.41074   27.58926  104.75511
2015 09 04 16 00 00      1.61091   51.70221   38.29779  117.10899
2015 09 04 17 00 00      1.35059   42.29650   47.70350  132.96450
2015 09 04 18 00 00      1.22658   35.44591   54.55409  154.16228
2015 09 04 19 00 00      1.19026   32.90435   57.09565  180.44430
2015 09 04 20 00 00      1.22954   35.63942   54.36058  206.60028
2015 09 04 21 00 00      1.35759   42.62096   47.37904  227.57265
2015 09 04 22 00 00      1.62521   52.10121   37.89879  243.25532
2015 09 04 23 00 00      2.18380   62.85266   27.14734  255.50284
2015 09 05 00 00 00      3.62253   74.16823   15.83177  265.89787
2015 09 05 01 00 00     11.28300   85.53065    4.46935  275.53673
2015 09 05 02 00 00     -1.00000   97.01506   -7.01506  285.25095
2015 09 05 03 00 00     -1.00000  107.78128  -17.78128  295.80389
2015 09 05 04 00 00     -1.00000  117.54956  -27.54956  308.01198
2015 09 05 05 00 00     -1.00000  125.64920  -35.64920  322.72277
2015 09 05 06 00 00     -1.00000  131.15565  -41.15565  340.42795
2015 09 05 07 00 00     -1.00000  133.09803  -43.09803    0.38725
2015 09 05 08 00 00     -1.00000  131.03659  -41.03659   20.30680
2015 09 05 09 00 00     -1.00000  125.43736  -35.43736   37.92611
2015 09 05 10 00 00     -1.00000  117.27772  -27.27772   52.55632
2015 09 05 11 00 00     -1.00000  107.47612  -17.47612   64.71223
2015 09 05 12 00 00     -1.00000   96.69636   -6.69636   75.24461
2015 09 05 13 00 00     10.69889   85.22435    4.77565   84.96899
2015 09 05 14 00 00      3.55936   73.87202   16.12798   94.65062


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.