Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 10 16 16 00 00      2.13760   62.21027   27.78973  132.48709
2017 10 16 17 00 00      1.73284   54.83465   35.16535  147.57222
2017 10 16 18 00 00      1.56130   50.24359   39.75641  165.34496
2017 10 16 19 00 00      1.53010   49.26074   40.73926  184.73996
2017 10 16 20 00 00      1.62510   52.09807   37.90193  203.56261
2017 10 16 21 00 00      1.89198   58.18178   31.81822  220.04680
2017 10 16 22 00 00      2.50417   66.58775   23.41225  233.82212
2017 10 16 23 00 00      4.20863   76.48371   13.51629  245.42592
2017 10 17 00 00 00     15.60485   87.12963    2.87037  255.63203
2017 10 17 01 00 00     -1.00000   98.71482   -8.71482  265.19373
2017 10 17 02 00 00     -1.00000  110.20316  -20.20316  274.85845
2017 10 17 03 00 00     -1.00000  121.51249  -31.51249  285.50799
2017 10 17 04 00 00     -1.00000  132.17868  -42.17868  298.39661
2017 10 17 05 00 00     -1.00000  141.39860  -51.39860  315.42643
2017 10 17 06 00 00     -1.00000  147.71246  -57.71246  338.70222
2017 10 17 07 00 00     -1.00000  149.17372  -59.17372    7.06587
2017 10 17 08 00 00     -1.00000  145.15014  -55.15014   33.54530
2017 10 17 09 00 00     -1.00000  137.20347  -47.20347   53.61620
2017 10 17 10 00 00     -1.00000  127.15831  -37.15831   68.36815
2017 10 17 11 00 00     -1.00000  116.12027  -26.12027   79.99173
2017 10 17 12 00 00     -1.00000  104.69425  -14.69425   90.05170
2017 10 17 13 00 00     -1.00000   93.26558   -3.26558   99.58629
2017 10 17 14 00 00      6.89613   82.05075    7.94925  109.38838
2017 10 17 15 00 00      3.15665   71.69504   18.30496  120.19423
2017 10 17 16 00 00      2.15681   62.48118   27.51882  132.76913


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.