Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 12 17 07 00 00     -1.00000  163.32976  -73.32976    3.22779
2014 12 17 08 00 00     -1.00000  158.56515  -68.56515   43.83565
2014 12 17 09 00 00     -1.00000  149.05455  -59.05455   66.84878
2014 12 17 10 00 00     -1.00000  138.02423  -48.02423   80.85564
2014 12 17 11 00 00     -1.00000  126.57869  -36.57869   91.24936
2014 12 17 12 00 00     -1.00000  115.16331  -25.16331  100.23325
2014 12 17 13 00 00     -1.00000  104.05637  -14.05637  108.87475
2014 12 17 14 00 00     -1.00000   93.51868   -3.51868  117.84123
2014 12 17 15 00 00      8.50621   83.72525    6.27475  127.65557
2014 12 17 16 00 00      3.91843   75.42546   14.57454  138.76353
2014 12 17 17 00 00      2.75630   68.86696   21.13304  151.46789
2014 12 17 18 00 00      2.32795   64.67406   25.32594  165.73246
2014 12 17 19 00 00      2.22063   63.34323   26.65677  180.97236
2014 12 17 20 00 00      2.36097   65.05661   24.94339  196.14013
2014 12 17 21 00 00      2.84708   69.58207   20.41793  210.22569
2014 12 17 22 00 00      4.18359   76.39826   13.60174  222.71860
2014 12 17 23 00 00     10.08311   84.86564    5.13436  233.63949
2014 12 18 00 00 00     -1.00000   94.81738   -4.81738  243.31762
2014 12 18 01 00 00     -1.00000  105.44341  -15.44341  252.20912
2014 12 18 02 00 00     -1.00000  116.60412  -26.60412  260.84819
2014 12 18 03 00 00     -1.00000  128.04126  -38.04126  269.93247
2014 12 18 04 00 00     -1.00000  139.46731  -49.46731  280.61500
2014 12 18 05 00 00     -1.00000  150.39489  -60.39489  295.34819
2014 12 18 06 00 00     -1.00000  159.55791  -69.55791  320.16007
2014 12 18 07 00 00     -1.00000  163.36731  -73.36731    2.84087


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.