Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 02 07 17 00 00      2.23129   63.48177   26.51823  143.47890
2016 02 07 18 00 00      1.87804   57.91590   32.08410  158.80241
2016 02 07 19 00 00      1.75634   55.37572   34.62428  175.86707
2016 02 07 20 00 00      1.79776   56.28738   33.71262  193.33232
2016 02 07 21 00 00      2.02413   60.48993   29.51007  209.60319
2016 02 07 22 00 00      2.58250   67.34726   22.65274  223.79775
2016 02 07 23 00 00      4.09841   76.09969   13.90031  235.92448
2016 02 08 00 00 00     12.34581   86.01854    3.98146  246.46740
2016 02 08 01 00 00     -1.00000   97.08135   -7.08135  256.04454
2016 02 08 02 00 00     -1.00000  108.39927  -18.39927  265.30710
2016 02 08 03 00 00     -1.00000  119.86788  -29.86788  275.00649
2016 02 08 04 00 00     -1.00000  131.14251  -41.14251  286.20498
2016 02 08 05 00 00     -1.00000  141.67657  -51.67657  300.70913
2016 02 08 06 00 00     -1.00000  150.35734  -60.35734  321.66454
2016 02 08 07 00 00     -1.00000  154.95371  -64.95371  351.92414
2016 02 08 08 00 00     -1.00000  153.19086  -63.19086   25.18272
2016 02 08 09 00 00     -1.00000  146.06500  -56.06500   50.41770
2016 02 08 10 00 00     -1.00000  136.19544  -46.19544   67.45420
2016 02 08 11 00 00     -1.00000  125.16673  -35.16673   79.89726
2016 02 08 12 00 00     -1.00000  113.72498  -23.72498   90.12456
2016 02 08 13 00 00     -1.00000  102.28011  -12.28011   99.47442
2016 02 08 14 00 00     -1.00000   91.14045   -1.14045  108.80714
2016 02 08 15 00 00      5.87715   80.53319    9.46681  118.80603
2016 02 08 16 00 00      3.06171   71.09477   18.90523  130.10966
2016 02 08 17 00 00      2.21055   63.21077   26.78923  143.30090


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.