Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 06 26 13 00 00      3.99804   75.73129   14.26871   71.28761
2016 06 26 14 00 00      2.32524   64.64212   25.35788   79.93358
2016 06 26 15 00 00      1.66768   53.23347   36.76653   88.93612
2016 06 26 16 00 00      1.34002   41.79577   48.20423   99.37440
2016 06 26 17 00 00      1.16326   30.78349   59.21651  113.48338
2016 06 26 18 00 00      1.07299   21.32376   68.67624  136.73001
2016 06 26 19 00 00      1.04354   16.68882   73.31118  177.58348
2016 06 26 20 00 00      1.06752   20.55718   69.44282  220.03310
2016 06 26 21 00 00      1.15092   29.73371   60.26629  244.71592
2016 06 26 22 00 00      1.31704   40.66181   49.33819  259.41266
2016 06 26 23 00 00      1.62459   52.08403   37.91597  270.08716
2016 06 27 00 00 00      2.23361   63.51183   26.48817  279.17349
2016 06 27 01 00 00      3.73001   74.64850   15.35150  287.81995
2016 06 27 02 00 00     10.58591   85.16147    4.83853  296.72340
2016 06 27 03 00 00     -1.00000   95.11870   -5.11870  306.41865
2016 06 27 04 00 00     -1.00000  103.67590  -13.67590  317.36273
2016 06 27 05 00 00     -1.00000  110.50024  -20.50024  329.88473
2016 06 27 06 00 00     -1.00000  115.01235  -25.01235  344.00189
2016 06 27 07 00 00     -1.00000  116.69814  -26.69814  359.19649
2016 06 27 08 00 00     -1.00000  115.33036  -25.33036   14.45118
2016 06 27 09 00 00     -1.00000  111.09501  -21.09501   28.71748
2016 06 27 10 00 00     -1.00000  104.48660  -14.48660   41.41563
2016 06 27 11 00 00     -1.00000   96.08646   -6.08646   52.51569
2016 06 27 12 00 00     12.79305   86.20139    3.79861   62.32485
2016 06 27 13 00 00      4.01485   75.79427   14.20573   71.29172


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.