Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 07 27 06 00 00     -1.00000  118.78436  -28.78436  342.03778
2014 07 27 07 00 00     -1.00000  120.77230  -30.77230  358.20564
2014 07 27 08 00 00     -1.00000  119.50256  -29.50256   14.52885
2014 07 27 09 00 00     -1.00000  115.17131  -25.17131   29.72321
2014 07 27 10 00 00     -1.00000  108.34848  -18.34848   43.10222
2014 07 27 11 00 00     -1.00000   99.69514   -9.69514   54.67353
2014 07 27 12 00 00     28.78619   89.26239    0.73761   64.83515
2014 07 27 13 00 00      5.08981   78.95217   11.04783   74.12123
2014 07 27 14 00 00      2.62568   67.74505   22.25495   83.12659
2014 07 27 15 00 00      1.79819   56.29653   33.70347   92.58081
2014 07 27 16 00 00      1.41126   44.94568   45.05432  103.59380
2014 07 27 17 00 00      1.20852   34.22199   55.77801  118.25254
2014 07 27 18 00 00      1.10561   25.31054   64.68946  140.77163
2014 07 27 19 00 00      1.07027   20.94658   69.05342  175.68646
2014 07 27 20 00 00      1.09290   23.85933   66.14067  212.68845
2014 07 27 21 00 00      1.17959   32.09210   57.90790  237.67290
2014 07 27 22 00 00      1.35646   42.56909   47.43091  253.56871
2014 07 27 23 00 00      1.69203   53.85009   36.14991  265.13368
2014 07 28 00 00 00      2.38432   65.32006   24.67994  274.80275
2014 07 28 01 00 00      4.24975   76.62181   13.37819  283.82789
2014 07 28 02 00 00     16.31751   87.31876    2.68124  292.99252
2014 07 28 03 00 00     -1.00000   97.73970   -7.73970  302.91106
2014 07 28 04 00 00     -1.00000  106.73891  -16.73891  314.13507
2014 07 28 05 00 00     -1.00000  114.04595  -24.04595  327.11376
2014 07 28 06 00 00     -1.00000  119.00651  -29.00651  341.97624


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.