Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 08 03 01 00 00      4.54491   77.53912   12.46088  282.73273
2015 08 03 02 00 00     20.70465   88.22632    1.77368  291.98286
2015 08 03 03 00 00     -1.00000   98.81755   -8.81755  301.98740
2015 08 03 04 00 00     -1.00000  107.92483  -17.92483  313.32752
2015 08 03 05 00 00     -1.00000  115.34366  -25.34366  326.49106
2015 08 03 06 00 00     -1.00000  120.39292  -30.39292  341.63970
2015 08 03 07 00 00     -1.00000  122.41887  -32.41887  358.23992
2015 08 03 08 00 00     -1.00000  121.09945  -31.09945   15.00182
2015 08 03 09 00 00     -1.00000  116.64904  -26.64904   30.53860
2015 08 03 10 00 00     -1.00000  109.67834  -19.67834   44.13738
2015 08 03 11 00 00     -1.00000  100.88232  -10.88232   55.84198
2015 08 03 12 00 00     -1.00000   90.84634   -0.84634   66.09843
2015 08 03 13 00 00      5.54694   79.92419   10.07581   75.47850
2015 08 03 14 00 00      2.73247   68.67085   21.32915   84.60473
2015 08 03 15 00 00      1.84252   57.21636   32.78364   94.22959
2015 08 03 16 00 00      1.43578   45.92082   44.07918  105.47810
2015 08 03 17 00 00      1.22508   35.34674   54.65326  120.39447
2015 08 03 18 00 00      1.11884   26.71060   63.28940  142.81509
2015 08 03 19 00 00      1.08266   22.60103   67.39897  176.15507
2015 08 03 20 00 00      1.10640   25.39740   64.60260  211.15779
2015 08 03 21 00 00      1.19665   33.37543   56.62457  235.70673
2015 08 03 22 00 00      1.38156   43.69398   46.30602  251.76763
2015 08 03 23 00 00      1.73604   54.90942   35.09058  263.54704
2015 08 04 00 00 00      2.48323   66.37591   23.62409  273.38493
2015 08 04 01 00 00      4.60647   77.71553   12.28447  282.53540


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.