Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 02 07 02 00 00     -1.00000  108.60054  -18.60054  265.05576
2016 02 07 03 00 00     -1.00000  120.06921  -30.06921  274.73113
2016 02 07 04 00 00     -1.00000  131.35433  -41.35433  285.89972
2016 02 07 05 00 00     -1.00000  141.91340  -51.91340  300.37950
2016 02 07 06 00 00     -1.00000  150.63543  -60.63543  321.37430
2016 02 07 07 00 00     -1.00000  155.26577  -65.26577  351.87180
2016 02 07 08 00 00     -1.00000  153.48065  -63.48065   25.44644
2016 02 07 09 00 00     -1.00000  146.30425  -56.30425   50.78087
2016 02 07 10 00 00     -1.00000  136.39872  -46.39872   67.79938
2016 02 07 11 00 00     -1.00000  125.35219  -35.35219   80.20687
2016 02 07 12 00 00     -1.00000  113.90574  -23.90574   90.40483
2016 02 07 13 00 00     -1.00000  102.46571  -12.46571   99.73358
2016 02 07 14 00 00     -1.00000   91.33860   -1.33860  109.05085
2016 02 07 15 00 00      6.00343   80.74863    9.25137  119.03582
2016 02 07 16 00 00      3.09928   71.33688   18.66312  130.32071
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


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.