Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 11 18 03 00 00     -1.00000  127.83035  -37.83035  276.13527
2017 11 18 04 00 00     -1.00000  139.06030  -49.06030  288.08529
2017 11 18 05 00 00     -1.00000  149.36537  -59.36537  304.87167
2017 11 18 06 00 00     -1.00000  157.11475  -67.11475  331.63127
2017 11 18 07 00 00     -1.00000  159.03846  -69.03846    9.82863
2017 11 18 08 00 00     -1.00000  153.79228  -63.79228   43.27253
2017 11 18 09 00 00     -1.00000  144.48149  -54.48149   64.35216
2017 11 18 10 00 00     -1.00000  133.60583  -43.60583   78.28635
2017 11 18 11 00 00     -1.00000  122.20638  -32.20638   88.96458
2017 11 18 12 00 00     -1.00000  110.75956  -20.75956   98.28366
2017 11 18 13 00 00     -1.00000   99.57245   -9.57245  107.27417
2017 11 18 14 00 00     22.73639   88.54297    1.45703  116.63433
2017 11 18 15 00 00      5.15198   79.09444   10.90556  126.94577
2017 11 18 16 00 00      3.00364   70.70791   19.29209  138.72754
2017 11 18 17 00 00      2.28975   64.21627   25.78373  152.33762
2017 11 18 18 00 00      2.01202   60.29309   29.70691  167.70038
2017 11 18 19 00 00      1.96328   59.47240   30.52760  184.03176
2017 11 18 20 00 00      2.11482   61.88189   28.11811  200.02378
2017 11 18 21 00 00      2.56306   67.16350   22.83650  214.56200
2017 11 18 22 00 00      3.73775   74.68198   15.31802  227.23137
2017 11 18 23 00 00      8.53972   83.75364    6.24636  238.21357
2017 11 19 00 00 00     -1.00000   94.13622   -4.13622  247.96902
2017 11 19 01 00 00     -1.00000  105.09051  -15.09051  257.04794
2017 11 19 02 00 00     -1.00000  116.44830  -26.44830  266.07137
2017 11 19 03 00 00     -1.00000  127.92766  -37.92766  275.85671


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.