Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 12 19 18 00 00      2.33613   64.76993   25.23007  165.49961
2014 12 19 19 00 00      2.22421   63.38999   26.61001  180.71894
2014 12 19 20 00 00      2.36059   65.05222   24.94778  195.88517
2014 12 19 21 00 00      2.84044   69.53141   20.46859  209.98506
2014 12 19 22 00 00      4.15810   76.31022   13.68978  222.49896
2014 12 19 23 00 00      9.90123   84.75169    5.24831  233.43953
2014 12 20 00 00 00     -1.00000   94.67973   -4.67973  243.13159
2014 12 20 01 00 00     -1.00000  105.29144  -15.29144  252.02894
2014 12 20 02 00 00     -1.00000  116.44322  -26.44322  260.66336
2014 12 20 03 00 00     -1.00000  127.87679  -37.87679  269.72738
2014 12 20 04 00 00     -1.00000  139.30650  -49.30650  280.36117
2014 12 20 05 00 00     -1.00000  150.25207  -60.25207  294.98282
2014 12 20 06 00 00     -1.00000  159.47182  -69.47182  319.54942
2014 12 20 07 00 00     -1.00000  163.41715  -73.41715    2.05415
2014 12 20 08 00 00     -1.00000  158.82005  -68.82005   43.18828
2014 12 20 09 00 00     -1.00000  149.36097  -59.36097   66.53191
2014 12 20 10 00 00     -1.00000  138.34411  -48.34411   80.65562
2014 12 20 11 00 00     -1.00000  126.90058  -36.90058   91.08954
2014 12 20 12 00 00     -1.00000  115.48166  -25.48166  100.08248
2014 12 20 13 00 00     -1.00000  104.36649  -14.36649  108.71610
2014 12 20 14 00 00     -1.00000   93.81491   -3.81491  117.66201
2014 12 20 15 00 00      8.83434   83.99435    6.00565  127.44400
2014 12 20 16 00 00      3.98088   75.66643   14.33357  138.50854
2014 12 20 17 00 00      2.78042   69.06180   20.93820  151.16240
2014 12 20 18 00 00      2.33929   64.80683   25.19317  165.37993


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.