Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2019 08 21 05 00 00     -1.00000  120.46715  -30.46715  324.47935
2019 08 21 06 00 00     -1.00000  125.77616  -35.77616  340.82766
2019 08 21 07 00 00     -1.00000  127.81333  -37.81333  358.99023
2019 08 21 08 00 00     -1.00000  126.19396  -36.19396   17.26912
2019 08 21 09 00 00     -1.00000  121.22854  -31.22854   33.88631
2019 08 21 10 00 00     -1.00000  113.69116  -23.69116   48.08947
2019 08 21 11 00 00     -1.00000  104.39108  -14.39108   60.10582
2019 08 21 12 00 00     -1.00000   93.96266   -3.96266   70.56814
2019 08 21 13 00 00      7.48516   82.74390    7.25610   80.17395
2019 08 21 14 00 00      3.10766   71.39008   18.60992   89.62743
2019 08 21 15 00 00      1.99294   59.97745   30.02255   99.73941
2019 08 21 16 00 00      1.52029   48.94013   41.05987  111.65233
2019 08 21 17 00 00      1.28451   38.93718   51.06282  127.21482
2019 08 21 18 00 00      1.16883   31.23966   58.76034  149.13909
2019 08 21 19 00 00      1.13177   27.98541   62.01459  178.36347
2019 08 21 20 00 00      1.16194   30.67352   59.32648  208.08491
2019 08 21 21 00 00      1.26859   38.03612   51.96388  230.78496
2019 08 21 22 00 00      1.48921   47.88603   42.11397  246.85078
2019 08 21 23 00 00      1.92901   58.86611   31.13389  259.02389
2019 08 22 00 00 00      2.94151   70.27627   19.72373  269.24644
2019 08 22 01 00 00      6.61432   81.67678    8.32322  278.71257
2019 08 22 02 00 00     -1.00000   92.95482   -2.95482  288.25439
2019 08 22 03 00 00     -1.00000  103.50379  -13.50379  298.58219
2019 08 22 04 00 00     -1.00000  112.98755  -22.98755  310.39885
2019 08 22 05 00 00     -1.00000  120.79152  -30.79152  324.36546


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.