Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2018 02 24 04 00 00     -1.00000  127.48527  -37.48527  291.84429
2018 02 24 05 00 00     -1.00000  137.50487  -47.50487  306.69406
2018 02 24 06 00 00     -1.00000  145.39439  -55.39439  326.93523
2018 02 24 07 00 00     -1.00000  149.30930  -59.30930  353.59949
2018 02 24 08 00 00     -1.00000  147.71156  -57.71156   21.98240
2018 02 24 09 00 00     -1.00000  141.29363  -51.29363   45.13346
2018 02 24 10 00 00     -1.00000  132.01491  -42.01491   62.04232
2018 02 24 11 00 00     -1.00000  121.31965  -31.31965   74.85372
2018 02 24 12 00 00     -1.00000  109.99889  -19.99889   85.46159
2018 02 24 13 00 00     -1.00000   98.51101   -8.51101   95.10985
2018 02 24 14 00 00     14.96941   86.94751    3.05249  104.67469
2018 02 24 15 00 00      4.15884   76.31276   13.68724  114.90143
2018 02 24 16 00 00      2.49065   66.45147   23.54853  126.54221
2018 02 24 17 00 00      1.88760   58.09862   31.90138  140.36604
2018 02 24 18 00 00      1.62477   52.08902   37.91098  156.89325
2018 02 24 19 00 00      1.53259   49.34127   40.65873  175.72177
2018 02 24 20 00 00      1.56680   50.41152   39.58848  195.06668
2018 02 24 21 00 00      1.74297   55.07017   34.92983  212.75706
2018 02 24 22 00 00      2.15740   62.48947   27.51053  227.76451
2018 02 24 23 00 00      3.16783   71.76321   18.23679  240.29880
2018 02 25 00 00 00      6.98041   82.15687    7.84313  251.07657
2018 02 25 01 00 00     -1.00000   93.39514   -3.39514  260.86922
2018 02 25 02 00 00     -1.00000  104.83063  -14.83063  270.41627
2018 02 25 03 00 00     -1.00000  116.24727  -26.24727  280.51532
2018 02 25 04 00 00     -1.00000  127.25483  -37.25483  292.21221


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.