Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 08 21 07 00 00     -1.00000  127.97451  -37.97451  359.02535
2017 08 21 08 00 00     -1.00000  126.34340  -36.34340   17.35174
2017 08 21 09 00 00     -1.00000  121.36013  -31.36013   34.00023
2017 08 21 10 00 00     -1.00000  113.80437  -23.80437   48.21873
2017 08 21 11 00 00     -1.00000  104.48881  -14.48881   60.24160
2017 08 21 12 00 00     -1.00000   94.04898   -4.04898   70.70782
2017 08 21 13 00 00      7.55760   82.82192    7.17808   80.31862
2017 08 21 14 00 00      3.11979   71.46652   18.53348   89.78039
2017 08 21 15 00 00      1.99769   60.05665   29.94335   99.90525
2017 08 21 16 00 00      1.52298   49.02881   40.97119  111.83535
2017 08 21 17 00 00      1.28645   39.04457   50.95543  127.41221
2017 08 21 18 00 00      1.17052   31.37544   58.62456  149.31702
2017 08 21 19 00 00      1.13346   28.14621   61.85379  178.43549
2017 08 21 20 00 00      1.16389   30.83492   59.16508  208.02382
2017 08 21 21 00 00      1.27113   38.18312   51.81688  230.66545
2017 08 21 22 00 00      1.49306   48.02022   41.97978  246.72261
2017 08 21 23 00 00      1.93607   58.99299   31.00701  258.90158
2017 08 22 00 00 00      2.95913   70.40064   19.59936  269.13212
2017 08 22 01 00 00      6.70580   81.80153    8.19847  278.60556
2017 08 22 02 00 00     -1.00000   93.08594   -3.08594  288.15428
2017 08 22 03 00 00     -1.00000  103.64256  -13.64256  298.49047
2017 08 22 04 00 00     -1.00000  113.13601  -23.13601  310.32056
2017 08 22 05 00 00     -1.00000  120.94988  -30.94988  324.31113
2017 08 22 06 00 00     -1.00000  126.27877  -36.27877  340.77911
2017 08 22 07 00 00     -1.00000  128.31046  -38.31046  359.09831


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.