Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2017 11 21 03 00 00     -1.00000  128.10254  -38.10254  275.30872
2017 11 21 04 00 00     -1.00000  139.36756  -49.36756  287.11297
2017 11 21 05 00 00     -1.00000  149.76341  -59.76341  303.72312
2017 11 21 06 00 00     -1.00000  157.68007  -67.68007  330.53823
2017 11 21 07 00 00     -1.00000  159.73877  -69.73877    9.63339
2017 11 21 08 00 00     -1.00000  154.45066  -64.45066   43.83757
2017 11 21 09 00 00     -1.00000  145.06562  -55.06562   65.02851
2017 11 21 10 00 00     -1.00000  134.14938  -44.14938   78.90221
2017 11 21 11 00 00     -1.00000  122.73760  -32.73760   89.50703
2017 11 21 12 00 00     -1.00000  111.29750  -21.29750   98.76441
2017 11 21 13 00 00     -1.00000  100.13056  -10.13056  107.70283
2017 11 21 14 00 00     26.74204   89.04845    0.95155  117.01251
2017 11 21 15 00 00      5.44155   79.71445   10.28555  127.26385
2017 11 21 16 00 00      3.10423   71.36836   18.63164  138.96124
2017 11 21 17 00 00      2.34780   64.90549   25.09451  152.44767
2017 11 21 18 00 00      2.05550   60.98734   29.01266  167.64464
2017 11 21 19 00 00      2.00250   60.13654   29.86346  183.79320
2017 11 21 20 00 00      2.15692   62.48269   27.51731  199.62926
2017 11 21 21 00 00      2.61888   67.68330   22.31670  214.06394
2017 11 21 22 00 00      3.84210   75.12008   14.87992  226.67515
2017 11 21 23 00 00      8.98983   84.11532    5.88468  237.62321
2017 11 22 00 00 00     -1.00000   94.44940   -4.44940  247.34912
2017 11 22 01 00 00     -1.00000  105.36397  -15.36397  256.38875
2017 11 22 02 00 00     -1.00000  116.70004  -26.70004  265.35099
2017 11 22 03 00 00     -1.00000  128.18013  -38.18013  275.03973


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.