Solar Geometry Calculator

 
              

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2015 03 26 08 00 00     -1.00000  136.08790  -46.08790   19.72259
2015 03 26 09 00 00     -1.00000  130.42338  -40.42338   38.85309
2015 03 26 10 00 00     -1.00000  122.04695  -32.04695   54.32144
2015 03 26 11 00 00     -1.00000  112.02282  -22.02282   66.87137
2015 03 26 12 00 00     -1.00000  101.07624  -11.07624   77.57999
2015 03 26 13 00 00     28.02236   89.18528    0.81472   87.38566
2015 03 26 14 00 00      4.75747   78.12885   11.87115   97.09711
2015 03 26 15 00 00      2.53956   66.93719   23.06281  107.53086
2015 03 26 16 00 00      1.80361   56.41184   33.58816  119.67700
2015 03 26 17 00 00      1.47119   47.24607   42.75393  134.81890
2015 03 26 18 00 00      1.31455   40.53476   49.46524  154.24232
2015 03 26 19 00 00      1.26293   37.70608   52.29392  177.68008
2015 03 26 20 00 00      1.29725   39.63035   50.36965  201.58008
2015 03 26 21 00 00      1.42992   45.69236   44.30764  221.90515
2015 03 26 22 00 00      1.71758   54.47329   35.52671  237.80548
2015 03 26 23 00 00      2.33769   64.78818   25.21182  250.43763
2015 03 27 00 00 00      4.03781   75.87948   14.12052  261.13487
2015 03 27 01 00 00     15.59751   87.12761    2.87239  270.94041
2015 03 27 02 00 00     -1.00000   98.79352   -8.79352  280.69214
2015 03 27 03 00 00     -1.00000  109.82358  -19.82358  291.18764
2015 03 27 04 00 00     -1.00000  120.02580  -30.02580  303.32779
2015 03 27 05 00 00     -1.00000  128.73083  -38.73083  318.16051
2015 03 27 06 00 00     -1.00000  134.94199  -44.94199  336.53608
2015 03 27 07 00 00     -1.00000  137.48148  -47.48148  357.95622
2015 03 27 08 00 00     -1.00000  135.68957  -45.68957   19.68176


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.