Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 04 29 09 00 00     -1.00000  118.35385  -28.35385   34.11256
2016 04 29 10 00 00     -1.00000  110.80321  -20.80321   47.76042
2016 04 29 11 00 00     -1.00000  101.54413  -11.54413   59.40991
2016 04 29 12 00 00     -1.00000   91.16700   -1.16700   69.62764
2016 04 29 13 00 00      5.59448   80.01623    9.98377   79.05568
2016 04 29 14 00 00      2.72943   68.64555   21.35445   88.36799
2016 04 29 15 00 00      1.84148   57.19532   32.80468   98.37764
2016 04 29 16 00 00      1.43965   46.07021   43.92979  110.29635
2016 04 29 17 00 00      1.23409   35.93368   54.06632  126.23096
2016 04 29 18 00 00      1.13362   28.16143   61.83857  149.57027
2016 04 29 19 00 00      1.10482   25.22363   64.77637  181.55514
2016 04 29 20 00 00      1.13928   28.69006   61.30994  212.98362
2016 04 29 21 00 00      1.24707   36.75099   53.24901  235.53163
2016 04 29 22 00 00      1.46463   47.00771   42.99229  250.99818
2016 04 29 23 00 00      1.89143   58.17143   31.82857  262.68909
2016 04 30 00 00 00      2.85140   69.61485   20.38515  272.60669
2016 04 30 01 00 00      6.12039   80.94038    9.05962  281.91164
2016 04 30 02 00 00     -1.00000   92.02788   -2.02788  291.39641
2016 04 30 03 00 00     -1.00000  102.29247  -12.29247  301.72754
2016 04 30 04 00 00     -1.00000  111.38530  -21.38530  313.53942
2016 04 30 05 00 00     -1.00000  118.70144  -28.70144  327.37187
2016 04 30 06 00 00     -1.00000  123.49337  -33.49337  343.36963
2016 04 30 07 00 00     -1.00000  125.06733  -35.06733    0.82813
2016 04 30 08 00 00     -1.00000  123.14705  -33.14705   18.19912
2016 04 30 09 00 00     -1.00000  118.06555  -28.06555   33.99013


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.