Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 03 28 22 00 00      1.69722   53.97861   36.02139  238.57480
2015 03 28 23 00 00      2.30149   64.35871   25.64129  251.18002
2015 03 29 00 00 00      3.93389   75.48582   14.51418  261.84849
2015 03 29 01 00 00     14.37009   86.76253    3.23747  271.63782
2015 03 29 02 00 00     -1.00000   98.39223   -8.39223  281.38798
2015 03 29 03 00 00     -1.00000  109.38318  -19.38318  291.89206
2015 03 29 04 00 00     -1.00000  119.52009  -29.52009  304.03650
2015 03 29 05 00 00     -1.00000  128.13414  -38.13414  318.83360
2015 03 29 06 00 00     -1.00000  134.24230  -44.24230  337.06962
2015 03 29 07 00 00     -1.00000  136.70391  -46.70391  358.20710
2015 03 29 08 00 00     -1.00000  134.89550  -44.89550   19.60236
2015 03 29 09 00 00     -1.00000  129.28460  -39.28460   38.38009
2015 03 29 10 00 00     -1.00000  120.98623  -30.98623   53.67545
2015 03 29 11 00 00     -1.00000  111.02962  -21.02962   66.15694
2015 03 29 12 00 00     -1.00000  100.12822  -10.12822   76.83997
2015 03 29 13 00 00     21.70754   88.38884    1.61116   86.63245
2015 03 29 14 00 00      4.43169   77.20180   12.79820   96.33266
2015 03 29 15 00 00      2.44464   65.97509   24.02491  106.76119
2015 03 29 16 00 00      1.75695   55.38957   34.61043  118.93291
2015 03 29 17 00 00      1.44150   46.14128   43.85872  134.19771
2015 03 29 18 00 00      1.29213   39.35471   50.64529  153.96240
2015 03 29 19 00 00      1.24348   36.52806   53.47194  177.99836
2015 03 29 20 00 00      1.27799   38.57300   51.42700  202.45776
2015 03 29 21 00 00      1.40788   44.80714   45.19286  223.03205
2015 03 29 22 00 00      1.68738   53.73404   36.26596  238.96163


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.