Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 10 19 18 00 00      1.59300   51.18954   38.81046  165.75773
2014 10 19 19 00 00      1.56173   50.25674   39.74326  184.82543
2014 10 19 20 00 00      1.66171   53.07890   36.92110  203.33217
2014 10 19 21 00 00      1.94227   59.10361   30.89639  219.60116
2014 10 19 22 00 00      2.59233   67.43912   22.56088  233.25962
2014 10 19 23 00 00      4.45474   77.27189   12.72811  244.80349
2014 10 20 00 00 00     18.54247   87.82568    2.17432  254.97253
2014 10 20 01 00 00     -1.00000   99.43975   -9.43975  264.50060
2014 10 20 02 00 00     -1.00000  110.92684  -20.92684  274.12647
2014 10 20 03 00 00     -1.00000  122.26120  -32.26120  284.73372
2014 10 20 04 00 00     -1.00000  132.98435  -42.98435  297.60110
2014 10 20 05 00 00     -1.00000  142.29371  -52.29371  314.72015
2014 10 20 06 00 00     -1.00000  148.69507  -58.69507  338.39954
2014 10 20 07 00 00     -1.00000  150.14361  -60.14361    7.50711
2014 10 20 08 00 00     -1.00000  145.98396  -55.98396   34.50507
2014 10 20 09 00 00     -1.00000  137.89033  -47.89033   54.68185
2014 10 20 10 00 00     -1.00000  127.74644  -37.74644   69.37796
2014 10 20 11 00 00     -1.00000  116.65728  -26.65728   80.92541
2014 10 20 12 00 00     -1.00000  105.21708  -15.21708   90.92628
2014 10 20 13 00 00     -1.00000   93.80399   -3.80399  100.42262
2014 10 20 14 00 00      7.37599   82.62353    7.37647  110.20097
2014 10 20 15 00 00      3.26612   72.34200   17.65800  120.98400
2014 10 20 16 00 00      2.21131   63.22084   26.77916  133.51123
2014 10 20 17 00 00      1.78409   55.99218   34.00782  148.43905
2014 10 20 18 00 00      1.60495   51.53326   38.46674  165.89912


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.