Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 08 28 00 00 00      3.18465   71.86491   18.13509  267.82242
2015 08 28 01 00 00      7.99428   83.26333    6.73667  277.37266
2015 08 28 02 00 00     -1.00000   94.62236   -4.62236  286.99553
2015 08 28 03 00 00     -1.00000  105.26555  -15.26555  297.42429
2015 08 28 04 00 00     -1.00000  114.87018  -24.87018  309.40770
2015 08 28 05 00 00     -1.00000  122.79849  -32.79849  323.67909
2015 08 28 06 00 00     -1.00000  128.20012  -38.20012  340.61738
2015 08 28 07 00 00     -1.00000  130.20405  -40.20405  359.55535
2015 08 28 08 00 00     -1.00000  128.40015  -38.40015   18.55469
2015 08 28 09 00 00     -1.00000  123.16090  -33.16090   35.63257
2015 08 28 10 00 00     -1.00000  115.34710  -25.34710   50.04948
2015 08 28 11 00 00     -1.00000  105.81842  -15.81842   62.14852
2015 08 28 12 00 00     -1.00000   95.22506   -5.22506   72.65747
2015 08 28 13 00 00      8.70092   83.88726    6.11274   82.32855
2015 08 28 14 00 00      3.29765   72.52004   17.47996   91.89625
2015 08 28 15 00 00      2.06647   61.15730   28.84270  102.18775
2015 08 28 16 00 00      1.56215   50.26972   39.73028  114.33591
2015 08 28 17 00 00      1.31486   40.55051   49.44949  130.07650
2015 08 28 18 00 00      1.19520   33.26935   56.73065  151.67778
2015 08 28 19 00 00      1.15837   30.37346   59.62654  179.39998
2015 08 28 20 00 00      1.19259   33.07698   56.92302  207.26914
2015 08 28 21 00 00      1.30881   40.23951   49.76049  229.11448
2015 08 28 22 00 00      1.55033   49.90400   40.09600  245.02261
2015 08 28 23 00 00      2.04191   60.77412   29.22588  257.25791
2015 08 29 00 00 00      3.23158   72.14277   17.85723  267.58244


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.