Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2014 07 29 23 00 00      1.70372   54.13806   35.86194  264.67505
2014 07 30 00 00 00      2.41042   65.60786   24.39214  274.39437
2014 07 30 01 00 00      4.34178   76.92131   13.07869  283.45618
2014 07 30 02 00 00     17.57876   87.61994    2.38006  292.64984
2014 07 30 03 00 00     -1.00000   98.09434   -8.09434  302.59718
2014 07 30 04 00 00     -1.00000  107.13059  -17.13059  313.85965
2014 07 30 05 00 00     -1.00000  114.47606  -24.47606  326.89925
2014 07 30 06 00 00     -1.00000  119.46762  -29.46762  341.85587
2014 07 30 07 00 00     -1.00000  121.47445  -31.47445  358.20574
2014 07 30 08 00 00     -1.00000  120.18659  -30.18659   14.71489
2014 07 30 09 00 00     -1.00000  115.80733  -25.80733   30.05618
2014 07 30 10 00 00     -1.00000  108.92345  -18.92345   43.53115
2014 07 30 11 00 00     -1.00000  100.21036  -10.21036   55.16176
2014 07 30 12 00 00     32.85311   89.62655    0.37345   65.36592
2014 07 30 13 00 00      5.27955   79.37591   10.62409   74.69373
2014 07 30 14 00 00      2.67109   68.14838   21.85162   83.75196
2014 07 30 15 00 00      1.81714   56.69632   33.30368   93.28016
2014 07 30 16 00 00      1.42172   45.36767   44.63233  104.39517
2014 07 30 17 00 00      1.21553   34.70612   55.29388  119.16653
2014 07 30 18 00 00      1.11116   25.91081   64.08919  141.64498
2014 07 30 19 00 00      1.07542   21.65346   68.34654  175.86190
2014 07 30 20 00 00      1.09846   24.50891   65.49109  211.98637
2014 07 30 21 00 00      1.18658   32.62808   57.37192  236.79994
2014 07 30 22 00 00      1.36672   43.03659   46.96341  252.77904
2014 07 30 23 00 00      1.70997   54.29016   35.70984  264.44207


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.