Solar Geometry Calculator

 
              


Local UTC     SolarZen and Elev Uncorrected for Atmospheric Refaction
yyyy MM dd HH:mm      AirMass   SolarZen       Elev       Azim
2024 03 27 19:00      1.25098   37.00248   52.99752  177.87198
2024 03 27 20:00      1.28542   39.00037   50.99963  202.10898
2024 03 27 21:00      1.41638   45.16959   44.83041  222.58594
2024 03 27 22:00      1.69903   54.04516   35.95484  238.50548
2024 03 27 23:00      2.30471   64.43077   25.56923  251.11323
2024 03 28 00:00      3.94308   75.58222   14.41778  261.78436
2024 03 28 01:00     14.47469   87.03203    2.96797  271.57523
2024 03 28 02:00     -1.00000   98.42872   -8.42872  281.32562
2024 03 28 03:00     -1.00000  109.42324  -19.42324  291.82905
2024 03 28 04:00     -1.00000  119.56603  -29.56603  303.97329
2024 03 28 05:00     -1.00000  128.18823  -38.18823  318.77384
2024 03 28 06:00     -1.00000  134.30554  -44.30554  337.02258
2024 03 28 07:00     -1.00000  136.77397  -46.77397  358.18534
2024 03 28 08:00     -1.00000  134.96693  -44.96693   19.60992
2024 03 28 09:00     -1.00000  129.35278  -39.35278   38.40843
2024 03 28 10:00     -1.00000  121.04972  -31.04972   53.71411
2024 03 28 11:00     -1.00000  111.08903  -21.08903   66.19978
2024 03 28 12:00     -1.00000  100.18486  -10.18486   76.88446
2024 03 28 13:00     22.02719   88.81191    1.18809   86.67786
2024 03 28 14:00      4.44986   77.32604   12.67396   96.37888
2024 03 28 15:00      2.45008   66.06826   23.93174  106.80791
2024 03 28 16:00      1.75965   55.47364   34.52636  118.97834
2024 03 28 17:00      1.44322   46.22385   43.77615  134.23598
2024 03 28 18:00      1.29343   39.43843   50.56157  153.98007
2024 03 28 19:00      1.24461   36.61048   53.38952  177.97933


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.