Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2016 12 08 15 00 00      7.45654   82.71267    7.28733  127.97704
2016 12 08 16 00 00      3.68615   74.45598   15.54402  139.24154
2016 12 08 17 00 00      2.65330   67.99219   22.00781  152.13898
2016 12 08 18 00 00      2.26783   63.94578   26.05422  166.60871
2016 12 08 19 00 00      2.18060   62.80923   27.19077  182.01677
2016 12 08 20 00 00      2.33368   64.74128   25.25872  197.27222
2016 12 08 21 00 00      2.83345   69.47779   20.52221  211.36412
2016 12 08 22 00 00      4.20597   76.47466   13.52534  223.81709
2016 12 08 23 00 00     10.44343   85.08036    4.91964  234.69012
2016 12 09 00 00 00     -1.00000   95.14671   -5.14671  244.33831
2016 12 09 01 00 00     -1.00000  105.85019  -15.85019  253.23441
2016 12 09 02 00 00     -1.00000  117.05973  -27.05973  261.92919
2016 12 09 03 00 00     -1.00000  128.51476  -38.51476  271.14879
2016 12 09 04 00 00     -1.00000  139.91504  -49.91504  282.10837
2016 12 09 05 00 00     -1.00000  150.73285  -60.73285  297.40065
2016 12 09 06 00 00     -1.00000  159.58556  -69.58556  323.20416
2016 12 09 07 00 00     -1.00000  162.78729  -72.78729    5.89684
2016 12 09 08 00 00     -1.00000  157.69611  -67.69611   44.84724
2016 12 09 09 00 00     -1.00000  148.12025  -58.12025   67.13663
2016 12 09 10 00 00     -1.00000  137.08116  -47.08116   80.95289
2016 12 09 11 00 00     -1.00000  125.63561  -35.63561   91.31191
2016 12 09 12 00 00     -1.00000  114.22275  -24.22275  100.31544
2016 12 09 13 00 00     -1.00000  103.12233  -13.12233  109.00524
2016 12 09 14 00 00     -1.00000   92.59920   -2.59920  118.04495
2016 12 09 15 00 00      7.58404   82.85004    7.14996  127.96134


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.