Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 05 23 21 00 00      1.18631   32.60750   57.39250  242.77848
2015 05 23 22 00 00      1.37497   43.40479   46.59521  257.47085
2015 05 23 23 00 00      1.73063   54.78291   35.21709  268.38082
2015 05 24 00 00 00      2.46855   66.22503   23.77497  277.71586
2015 05 24 01 00 00      4.50006   77.40754   12.59246  286.60195
2015 05 24 02 00 00     18.74255   87.86608    2.13392  295.75809
2015 05 24 03 00 00     -1.00000   98.04328   -8.04328  305.75727
2015 05 24 04 00 00     -1.00000  106.65509  -16.65509  317.10405
2015 05 24 05 00 00     -1.00000  113.47041  -23.47041  330.16866
2015 05 24 06 00 00     -1.00000  117.85971  -27.85971  344.96099
2015 05 24 07 00 00     -1.00000  119.27508  -29.27508    0.86024
2015 05 24 08 00 00     -1.00000  117.50857  -27.50857   16.68681
2015 05 24 09 00 00     -1.00000  112.81706  -22.81706   31.30102
2015 05 24 10 00 00     -1.00000  105.77005  -15.77005   44.15903
2015 05 24 11 00 00     -1.00000   96.99288   -6.99288   55.32563
2015 05 24 12 00 00     14.42235   86.77921    3.22079   65.19355
2015 05 24 13 00 00      4.11974   76.17564   13.82436   74.27407
2015 05 24 14 00 00      2.35119   64.94455   25.05545   83.14766
2015 05 24 15 00 00      1.67748   53.48432   36.51568   92.55710
2015 05 24 16 00 00      1.34692   42.12415   47.87585  103.69721
2015 05 24 17 00 00      1.17102   31.41630   58.58370  118.96601
2015 05 24 18 00 00      1.08343   22.69879   67.30121  143.52888
2015 05 24 19 00 00      1.05839   19.19343   70.80657  182.24839
2015 05 24 20 00 00      1.08935   23.43324   66.56676  219.74580
2015 05 24 21 00 00      1.18443   32.46476   57.53524  243.00406


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.