Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 11 21 00 00 00     -1.00000   94.32292   -4.32292  247.60832
2014 11 21 01 00 00     -1.00000  105.25427  -15.25427  256.66423
2014 11 21 02 00 00     -1.00000  116.59962  -26.59962  265.65204
2014 11 21 03 00 00     -1.00000  128.07966  -38.07966  275.38140
2014 11 21 04 00 00     -1.00000  139.34169  -49.34169  287.19872
2014 11 21 05 00 00     -1.00000  149.72966  -59.72966  303.82514
2014 11 21 06 00 00     -1.00000  157.63147  -67.63147  330.63707
2014 11 21 07 00 00     -1.00000  159.67777  -69.67777    9.65288
2014 11 21 08 00 00     -1.00000  154.39309  -64.39309   43.78870
2014 11 21 09 00 00     -1.00000  145.01445  -55.01445   64.96974
2014 11 21 10 00 00     -1.00000  134.10168  -44.10168   78.84879
2014 11 21 11 00 00     -1.00000  122.69093  -32.69093   89.46009
2014 11 21 12 00 00     -1.00000  111.25021  -21.25021   98.72293
2014 11 21 13 00 00     -1.00000  100.08151  -10.08151  107.66596
2014 11 21 14 00 00     26.35586   89.00515    0.99485  116.98013
2014 11 21 15 00 00      5.41488   79.66011   10.33989  127.23680
2014 11 21 16 00 00      3.09515   71.31057   18.68943  138.94164
2014 11 21 17 00 00      2.34261   64.84532   25.15468  152.43889
2014 11 21 18 00 00      2.05163   60.92689   29.07311  167.65026
2014 11 21 19 00 00      1.99903   60.07885   29.92115  183.81463
2014 11 21 20 00 00      2.15320   62.43064   27.56936  199.66415
2014 11 21 21 00 00      2.61395   67.63840   22.36160  214.10775
2014 11 21 22 00 00      3.83289   75.08239   14.91761  226.72398
2014 11 21 23 00 00      8.94958   84.08439    5.91561  237.67498
2014 11 22 00 00 00     -1.00000   94.42276   -4.42276  247.40346


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.