Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 05 04 14 00 00      2.61422   67.64085   22.35915   87.18401
2016 05 04 15 00 00      1.79270   56.17870   33.82130   97.07618
2016 05 04 16 00 00      1.41236   44.99027   45.00973  108.86174
2016 05 04 17 00 00      1.21574   34.72017   55.27983  124.74396
2016 05 04 18 00 00      1.11930   26.75720   63.24280  148.51368
2016 05 04 19 00 00      1.09196   23.74746   66.25254  181.95392
2016 05 04 20 00 00      1.12594   27.42067   62.57933  214.62032
2016 05 04 21 00 00      1.23092   35.72912   54.27088  237.35100
2016 05 04 22 00 00      1.44138   46.13683   43.86317  252.65027
2016 05 04 23 00 00      1.85006   57.36752   32.63248  264.16014
2016 05 05 00 00 00      2.75058   68.82023   21.17977  273.94217
2016 05 05 01 00 00      5.64732   80.11676    9.88324  283.15303
2016 05 05 02 00 00     -1.00000   91.12546   -1.12546  292.56910
2016 05 05 03 00 00     -1.00000  101.28666  -11.28666  302.83445
2016 05 05 04 00 00     -1.00000  110.24904  -20.24904  314.54979
2016 05 05 05 00 00     -1.00000  117.42183  -27.42183  328.20680
2016 05 05 06 00 00     -1.00000  122.08822  -32.08822  343.90561
2016 05 05 07 00 00     -1.00000  123.59644  -33.59644    0.95591
2016 05 05 08 00 00     -1.00000  121.69344  -31.69344   17.91162
2016 05 05 09 00 00     -1.00000  116.69436  -26.69436   33.38476
2016 05 05 10 00 00     -1.00000  109.27465  -19.27465   46.79064
2016 05 05 11 00 00     -1.00000  100.14194  -10.14194   58.29621
2016 05 05 12 00 00     29.52813   89.33435    0.66565   68.41480
2016 05 05 13 00 00      5.02404   78.79786   11.20214   77.75026
2016 05 05 14 00 00      2.59396   67.45424   22.54576   86.95203


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.