Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 07 27 18 00 00      1.10654   25.41221   64.58779  140.91608
2016 07 27 19 00 00      1.07112   21.06540   68.93460  175.70994
2016 07 27 20 00 00      1.09381   23.96712   66.03288  212.56267
2016 07 27 21 00 00      1.18072   32.18002   57.81998  237.52117
2016 07 27 22 00 00      1.35812   42.64533   47.35467  253.43286
2016 07 27 23 00 00      1.69492   53.92176   36.07824  265.01521
2016 07 28 00 00 00      2.39076   65.39175   24.60825  274.69737
2016 07 28 01 00 00      4.27236   76.69658   13.30342  283.73196
2016 07 28 02 00 00     16.61913   87.39445    2.60555  292.90400
2016 07 28 03 00 00     -1.00000   97.82877   -7.82877  302.82980
2016 07 28 04 00 00     -1.00000  106.83761  -16.83761  314.06346
2016 07 28 05 00 00     -1.00000  114.15470  -24.15470  327.05744
2016 07 28 06 00 00     -1.00000  119.12349  -29.12349  341.94363
2016 07 28 07 00 00     -1.00000  121.12162  -31.12162  358.20155
2016 07 28 08 00 00     -1.00000  119.84371  -29.84371   14.61711
2016 07 28 09 00 00     -1.00000  115.48935  -25.48935   29.88488
2016 07 28 10 00 00     -1.00000  108.63670  -18.63670   43.31221
2016 07 28 11 00 00     -1.00000   99.95398   -9.95398   54.91362
2016 07 28 12 00 00     30.77074   89.44897    0.55103   65.09690
2016 07 28 13 00 00      5.18370   79.16570   10.83430   74.40411
2016 07 28 14 00 00      2.64836   67.94833   22.05167   83.43602
2016 07 28 15 00 00      1.80767   56.49787   33.50213   92.92720
2016 07 28 16 00 00      1.41649   45.15778   44.84222  103.99105
2016 07 28 17 00 00      1.21202   34.46461   55.53539  118.70590
2016 07 28 18 00 00      1.10836   25.61046   64.38954  141.20409


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.