Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 11 22 01 00 00     -1.00000  105.34087  -15.34087  256.44653
2014 11 22 02 00 00     -1.00000  116.67891  -26.67891  265.41415
2014 11 22 03 00 00     -1.00000  128.15902  -38.15902  275.11144
2014 11 22 04 00 00     -1.00000  139.43202  -49.43202  286.87960
2014 11 22 05 00 00     -1.00000  149.84928  -59.84928  303.44336
2014 11 22 06 00 00     -1.00000  157.80693  -67.80693  330.26097
2014 11 22 07 00 00     -1.00000  159.90166  -69.90166    9.56619
2014 11 22 08 00 00     -1.00000  154.60657  -64.60657   43.95866
2014 11 22 09 00 00     -1.00000  145.20535  -55.20535   65.17946
2014 11 22 10 00 00     -1.00000  134.28021  -44.28021   79.04035
2014 11 22 11 00 00     -1.00000  122.86582  -32.86582   89.62853
2014 11 22 12 00 00     -1.00000  111.42734  -21.42734   98.87159
2014 11 22 13 00 00     -1.00000  100.26497  -10.26497  107.79763
2014 11 22 14 00 00     27.83147   89.16551    0.83449  117.09507
2014 11 22 15 00 00      5.51540   79.86225   10.13775  127.33174
2014 11 22 16 00 00      3.12910   71.52479   18.47521  139.00871
2014 11 22 17 00 00      2.36192   65.06742   24.93258  152.46572
2014 11 22 18 00 00      2.06594   61.14899   28.85101  167.62393
2014 11 22 19 00 00      2.01181   60.28967   29.71033  183.73041
2014 11 22 20 00 00      2.16679   62.61972   27.38028  199.53107
2014 11 22 21 00 00      2.63181   67.80036   22.19964  213.94261
2014 11 22 22 00 00      3.86606   75.21726   14.78274  226.54109
2014 11 22 23 00 00      9.09385   84.19406    5.80594  237.48180
2014 11 23 00 00 00     -1.00000   94.51631   -4.51631  247.20119
2014 11 23 01 00 00     -1.00000  105.42120  -15.42120  256.23180


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.