Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 07 23 13 00 00      4.86546   78.40871   11.59129   73.43549
2014 07 23 14 00 00      2.56982   67.22774   22.77226   82.37321
2014 07 23 15 00 00      1.77466   55.78549   34.21451   91.73436
2014 07 23 16 00 00      1.39832   44.41025   45.58975  102.61967
2014 07 23 17 00 00      1.19995   33.61405   56.38595  117.13645
2014 07 23 18 00 00      1.09894   24.56377   65.43623  139.70724
2014 07 23 19 00 00      1.06421   20.07588   69.92412  175.54468
2014 07 23 20 00 00      1.08647   23.07929   66.92071  213.67291
2014 07 23 21 00 00      1.17161   31.46310   58.53690  238.82497
2014 07 23 22 00 00      1.34485   42.02603   47.97397  254.58775
2014 07 23 23 00 00      1.67180   53.33946   36.66054  266.01743
2014 07 24 00 00 00      2.33938   64.80782   25.19218  275.58677
2014 07 24 01 00 00      4.09442   76.08538   13.91462  284.54065
2014 07 24 02 00 00     14.38960   86.76877    3.23123  293.65004
2014 07 24 03 00 00     -1.00000   97.09553   -7.09553  303.51501
2014 07 24 04 00 00     -1.00000  106.02253  -16.02253  314.66859
2014 07 24 05 00 00     -1.00000  113.25416  -23.25416  327.53636
2014 07 24 06 00 00     -1.00000  118.15226  -28.15226  342.22732
2014 07 24 07 00 00     -1.00000  120.11825  -30.11825  358.22879
2014 07 24 08 00 00     -1.00000  118.86052  -28.86052   14.38014
2014 07 24 09 00 00     -1.00000  114.56956  -24.56956   29.43611
2014 07 24 10 00 00     -1.00000  107.80035  -17.80035   42.72239
2014 07 24 11 00 00     -1.00000   99.20075   -9.20075   54.23482
2014 07 24 12 00 00     25.36576   88.88936    1.11064   64.35368
2014 07 24 13 00 00      4.91868   78.54209   11.45791   73.59845


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.