Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 03 29 23 00 00      2.28402   64.14618   25.85382  251.55181
2015 03 30 00 00 00      3.88432   75.29049   14.70951  262.20489
2015 03 30 01 00 00     13.81901   86.57971    3.42029  271.98538
2015 03 30 02 00 00     -1.00000   98.19188   -8.19188  281.73403
2015 03 30 03 00 00     -1.00000  109.16281  -19.16281  292.24148
2015 03 30 04 00 00     -1.00000  119.26679  -29.26679  304.38683
2015 03 30 05 00 00     -1.00000  127.83551  -37.83551  319.16472
2015 03 30 06 00 00     -1.00000  133.89289  -43.89289  337.33060
2015 03 30 07 00 00     -1.00000  136.31643  -46.31643  358.32932
2015 03 30 08 00 00     -1.00000  134.50000  -44.50000   19.56358
2015 03 30 09 00 00     -1.00000  128.90651  -38.90651   38.22662
2015 03 30 10 00 00     -1.00000  120.63375  -30.63375   53.46439
2015 03 30 11 00 00     -1.00000  110.69960  -20.69960   65.92211
2015 03 30 12 00 00     -1.00000   99.81347   -9.81347   76.59553
2015 03 30 13 00 00     20.04967   88.11279    1.88721   86.38256
2015 03 30 14 00 00      4.33344   76.89472   13.10528   96.07792
2015 03 30 15 00 00      2.41493   65.65690   24.34310  106.50341
2015 03 30 16 00 00      1.74217   55.05161   34.94839  118.68210
2015 03 30 17 00 00      1.43205   45.77572   44.22428  133.98658
2015 03 30 18 00 00      1.28498   38.96359   51.03641  153.86638
2015 03 30 19 00 00      1.23728   36.13764   53.86236  178.10772
2015 03 30 20 00 00      1.27184   38.22387   51.77613  202.75766
2015 03 30 21 00 00      1.40085   44.51607   45.48393  223.41332
2015 03 30 22 00 00      1.67775   53.49135   36.50865  239.34969
2015 03 30 23 00 00      2.26697   63.93513   26.06487  251.92380


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.