Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 08 30 08 00 00     -1.00000  129.29905  -39.29905   19.12522
2016 08 30 09 00 00     -1.00000  123.94101  -33.94101   36.38909
2016 08 30 10 00 00     -1.00000  116.01101  -26.01101   50.88420
2016 08 30 11 00 00     -1.00000  106.38905  -16.38905   63.00789
2016 08 30 12 00 00     -1.00000   95.73066   -5.73066   73.52881
2016 08 30 13 00 00      9.30153   84.34625    5.65375   83.22108
2016 08 30 14 00 00      3.38211   72.98000   17.02000   92.83042
2016 08 30 15 00 00      2.09862   61.64335   28.35665  103.18885
2016 08 30 16 00 00      1.58051   50.82295   39.17705  115.42223
2016 08 30 17 00 00      1.32827   41.22418   48.77582  131.21616
2016 08 30 18 00 00      1.20695   34.11176   55.88824  152.66733
2016 08 30 19 00 00      1.17028   31.35663   58.64337  179.81301
2016 08 30 20 00 00      1.20637   34.07101   55.92899  206.98898
2016 08 30 21 00 00      1.32697   41.15986   48.84014  228.49045
2016 08 30 22 00 00      1.57810   50.75135   39.24865  244.31695
2016 08 30 23 00 00      2.09407   61.57557   28.42443  256.56297
2016 08 31 00 00 00      3.37171   72.92467   17.07533  266.91922
2016 08 31 01 00 00      9.25442   84.31229    5.68771  276.51482
2016 08 31 02 00 00     -1.00000   95.72652   -5.72652  286.18340
2016 08 31 03 00 00     -1.00000  106.42808  -16.42808  296.67251
2016 08 31 04 00 00     -1.00000  116.10942  -26.10942  308.76178
2016 08 31 05 00 00     -1.00000  124.11753  -34.11753  323.23554
2016 08 31 06 00 00     -1.00000  129.56849  -39.56849  340.52198
2016 08 31 07 00 00     -1.00000  131.54659  -41.54659  359.92160
2016 08 31 08 00 00     -1.00000  129.62779  -39.62779   19.34090


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.