Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 07 29 02 00 00     17.24982   87.54514    2.45486  292.73262
2016 07 29 03 00 00     -1.00000   98.00619   -8.00619  302.67283
2016 07 29 04 00 00     -1.00000  107.03355  -17.03355  313.92573
2016 07 29 05 00 00     -1.00000  114.36986  -24.36986  326.95018
2016 07 29 06 00 00     -1.00000  119.35414  -29.35414  341.88346
2016 07 29 07 00 00     -1.00000  121.35838  -31.35838  358.20295
2016 07 29 08 00 00     -1.00000  120.07408  -30.07408   14.68130
2016 07 29 09 00 00     -1.00000  115.70326  -25.70326   29.99852
2016 07 29 10 00 00     -1.00000  108.82984  -18.82984   43.45801
2016 07 29 11 00 00     -1.00000  100.12686  -10.12686   55.07920
2016 07 29 12 00 00     32.16372   89.56960    0.43040   65.27664
2016 07 29 13 00 00      5.24806   79.30768   10.69232   74.59777
2016 07 29 14 00 00      2.66367   68.08349   21.91651   83.64739
2016 07 29 15 00 00      1.81405   56.63192   33.36808   93.16342
2016 07 29 16 00 00      1.42001   45.29943   44.70057  104.26155
2016 07 29 17 00 00      1.21438   34.62736   55.37264  119.01419
2016 07 29 18 00 00      1.11024   25.81250   64.18750  141.49868
2016 07 29 19 00 00      1.07455   21.53684   68.46316  175.82728
2016 07 29 20 00 00      1.09752   24.40041   65.59959  212.09475
2016 07 29 21 00 00      1.18539   32.53756   57.46244  236.93911
2016 07 29 22 00 00      1.36496   42.95721   47.04279  252.90629
2016 07 29 23 00 00      1.70689   54.21533   35.78467  264.55402
2016 07 30 00 00 00      2.41752   65.68498   24.31502  274.28641
2016 07 30 01 00 00      4.36708   77.00142   12.99858  283.35781
2016 07 30 02 00 00     17.94238   87.69983    2.30017  292.55909


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.