Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
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
2016 07 28 19 00 00      1.07281   21.29863   68.70137  175.76549
2016 07 28 20 00 00      1.09563   24.18075   65.81925  212.32679
2016 07 28 21 00 00      1.18300   32.35576   57.64424  237.23031
2016 07 28 22 00 00      1.36146   42.79841   47.20159  253.17059
2016 07 28 23 00 00      1.70077   54.06584   35.93416  264.78585
2016 07 29 00 00 00      2.40382   65.53574   24.46426  274.49313
2016 07 29 01 00 00      4.31839   76.84643   13.15357  283.54607
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


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.