Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 10 24 09 00 00     -1.00000  138.87681  -48.87681   56.21964
2014 10 24 10 00 00     -1.00000  128.59687  -38.59687   70.82350
2014 10 24 11 00 00     -1.00000  117.44026  -27.44026   82.25403
2014 10 24 12 00 00     -1.00000  105.98476  -15.98476   92.16456
2014 10 24 13 00 00     -1.00000   94.59798   -4.59798  101.60047
2014 10 24 14 00 00      8.21240   83.46688    6.53312  111.33783
2014 10 24 15 00 00      3.44247   73.29444   16.70556  122.07893
2014 10 24 16 00 00      2.29695   64.30385   25.69615  134.52648
2014 10 24 17 00 00      1.84276   57.22129   32.77871  149.27815
2014 10 24 18 00 00      1.65444   52.88856   37.11144  166.41068
2014 10 24 19 00 00      1.62264   52.03006   37.96994  184.91356
2014 10 24 20 00 00      1.73200   54.81501   35.18499  202.88174
2014 10 24 21 00 00      2.03903   60.72835   29.27165  218.78115
2014 10 24 22 00 00      2.76444   68.93311   21.06689  232.23458
2014 10 24 23 00 00      4.96142   78.64715   11.35285  243.66942
2014 10 25 00 00 00     26.11335   88.97743    1.02257  253.76735
2014 10 25 01 00 00     -1.00000  100.69267  -10.69267  263.22778
2014 10 25 02 00 00     -1.00000  112.17275  -22.17275  272.77251
2014 10 25 03 00 00     -1.00000  123.54842  -33.54842  283.28517
2014 10 25 04 00 00     -1.00000  134.37354  -44.37354  296.08393
2014 10 25 05 00 00     -1.00000  143.85156  -53.85156  313.32294
2014 10 25 06 00 00     -1.00000  150.43069  -60.43069  337.72512
2014 10 25 07 00 00     -1.00000  151.87350  -61.87350    8.26336
2014 10 25 08 00 00     -1.00000  147.47192  -57.47192   36.24476
2014 10 25 09 00 00     -1.00000  139.11949  -49.11949   56.59798


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.