Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 12 16 00 00 00     -1.00000   94.91910   -4.91910  243.49701
2017 12 16 01 00 00     -1.00000  105.55889  -15.55889  252.38556
2017 12 16 02 00 00     -1.00000  116.72825  -26.72825  261.03133
2017 12 16 03 00 00     -1.00000  128.16877  -38.16877  270.13692
2017 12 16 04 00 00     -1.00000  139.59096  -49.59096  280.86722
2017 12 16 05 00 00     -1.00000  150.50050  -60.50050  295.70451
2017 12 16 06 00 00     -1.00000  159.60890  -69.60890  320.72900
2017 12 16 07 00 00     -1.00000  163.29665  -73.29665    3.51101
2017 12 16 08 00 00     -1.00000  158.49367  -68.49367   43.97472
2017 12 16 09 00 00     -1.00000  148.97259  -58.97259   66.90939
2017 12 16 10 00 00     -1.00000  137.93983  -47.93983   80.89094
2017 12 16 11 00 00     -1.00000  126.49399  -36.49399   91.27708
2017 12 16 12 00 00     -1.00000  115.07926  -25.07926  100.26026
2017 12 16 13 00 00     -1.00000  103.97388  -13.97388  108.90475
2017 12 16 14 00 00     -1.00000   93.43893   -3.43893  117.87711
2017 12 16 15 00 00      8.42022   83.65142    6.34858  127.70022
2017 12 16 16 00 00      3.90120   75.35756   14.64244  138.81990
2017 12 16 17 00 00      2.74927   68.80949   21.19051  151.53818
2017 12 16 18 00 00      2.32431   64.63116   25.36884  165.81643
2017 12 16 19 00 00      2.21872   63.31825   26.68175  181.06577
2017 12 16 20 00 00      2.36045   65.05066   24.94934  196.23596
2017 12 16 21 00 00      2.84861   69.59364   20.40636  210.31774
2017 12 16 22 00 00      4.19117   76.42422   13.57578  222.80398
2017 12 16 23 00 00     10.14224   84.90186    5.09814  233.71839
2017 12 17 00 00 00     -1.00000   94.86276   -4.86276  243.39202


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.