Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 02 10 02 00 00     -1.00000  107.99536  -17.99536  265.82474
2016 02 10 03 00 00     -1.00000  119.46313  -29.46313  275.57212
2016 02 10 04 00 00     -1.00000  130.71534  -40.71534  286.83050
2016 02 10 05 00 00     -1.00000  141.19719  -51.19719  301.38300
2016 02 10 06 00 00     -1.00000  149.79279  -59.79279  322.25910
2016 02 10 07 00 00     -1.00000  154.31793  -64.31793  352.05014
2016 02 10 08 00 00     -1.00000  152.59478  -62.59478   24.68112
2016 02 10 09 00 00     -1.00000  145.56755  -55.56755   49.70456
2016 02 10 10 00 00     -1.00000  135.77026  -45.77026   66.76757
2016 02 10 11 00 00     -1.00000  124.77817  -34.77817   79.27754
2016 02 10 12 00 00     -1.00000  113.34676  -23.34676   89.56176
2016 02 10 13 00 00     -1.00000  101.89293  -11.89293   98.95315
2016 02 10 14 00 00     37.53991   89.97434    0.02566  108.31657
2016 02 10 15 00 00      5.63159   80.08702    9.91298  118.34357
2016 02 10 16 00 00      2.98720   70.59558   19.40442  129.68555
2016 02 10 17 00 00      2.16926   62.65391   27.34609  142.94495
2016 02 10 18 00 00      1.83228   57.00865   32.99135  158.44618
2016 02 10 19 00 00      1.71547   54.42287   35.57713  175.76915
2016 02 10 20 00 00      1.75489   55.34283   34.65717  193.51602
2016 02 10 21 00 00      1.97074   59.60111   30.39889  210.01287
2016 02 10 22 00 00      2.49902   66.53606   23.46394  224.35004
2016 02 10 23 00 00      3.90334   75.36606   14.63394  236.55779
2016 02 11 00 00 00     10.96498   85.36766    4.63234  247.15198
2016 02 11 01 00 00     -1.00000   96.45154   -6.45154  256.77425
2016 02 11 02 00 00     -1.00000  107.79282  -17.79282  266.09080


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.