Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 11 26 09 00 00     -1.00000  145.94548  -55.94548   65.92161
2014 11 26 10 00 00     -1.00000  134.97742  -44.97742   79.72336
2014 11 26 11 00 00     -1.00000  123.55093  -33.55093   90.22797
2014 11 26 12 00 00     -1.00000  112.12101  -22.12101   99.39726
2014 11 26 13 00 00     -1.00000  100.98136  -10.98136  108.25810
2014 11 26 14 00 00     34.41322   89.74941    0.25059  117.48982
2014 11 26 15 00 00      5.94010   80.64172    9.35828  127.64724
2014 11 26 16 00 00      3.26653   72.34431   17.65569  139.21497
2014 11 26 17 00 00      2.43838   65.90873   24.09127  152.51732
2014 11 26 18 00 00      2.12163   61.98092   28.01908  167.47543
2014 11 26 19 00 00      2.06079   61.06952   28.93048  183.36808
2014 11 26 20 00 00      2.21804   63.30931   26.69069  198.99140
2014 11 26 21 00 00      2.69806   68.38112   21.61888  213.28898
2014 11 26 22 00 00      3.98734   75.69090   14.30910  225.82630
2014 11 26 23 00 00      9.62223   84.56901    5.43099  236.73241
2014 11 27 00 00 00     -1.00000   94.82725   -4.82725  246.42038
2014 11 27 01 00 00     -1.00000  105.67983  -15.67983  255.40530
2014 11 27 02 00 00     -1.00000  116.98044  -26.98044  264.27773
2014 11 27 03 00 00     -1.00000  128.45777  -38.45777  273.81944
2014 11 27 04 00 00     -1.00000  139.77926  -49.77926  285.34092
2014 11 27 05 00 00     -1.00000  150.33363  -60.33363  301.56404
2014 11 27 06 00 00     -1.00000  158.56767  -68.56767  328.29837
2014 11 27 07 00 00     -1.00000  160.93295  -70.93295    8.93635
2014 11 27 08 00 00     -1.00000  155.61904  -65.61904   44.63415
2014 11 27 09 00 00     -1.00000  146.12437  -56.12437   66.08186


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.