# Solar elevation angle (for a day) Calculator

## Calculates a table of changes in the solar elevation and azimuth angles for a day and draws the chart.

 Input negative degree for west longtitude and south latitude.If your local time is on Daylight Saving time, select 'ON' from DST mode.
 Longitude ,Latitude Date JanFebMarAprMayJunJulAugSepOctNovDec /12345678910111213141516171819202122232425262728293031,(1900~2099) Time zoneh, DSTOFFON
 azimuth angle: north=0, east=90, south=180, west=270 degree
Solar elevation angle (for a day)
 [1-10] /102 Disp-Num5103050100200
[1]  2019/08/14 09:48   Male / 60 years old level or over / A teacher / A researcher / Very /
Purpose of use
Determine sun angle at different times of day throughout the year to optimise orientation and elevation of solar photovoltaic panels on a multi-facet roof.
[2]  2019/07/11 01:12   Male / 60 years old level or over / A retired person / Very /
Purpose of use
Determine sun azimuth through the day when measuring track and field event long throws or horizontal jumps. We use surveyors total stations for precise distance and avoid shooting up sun. Expected sun are for the day is important in positioning the instrument for proper view down sun.
[3]  2019/07/04 11:45   Female / 60 years old level or over / An engineer / Very /
Purpose of use
Determine shadows on a landscape planting plan
[4]  2019/06/30 13:52   Male / 20 years old level / Others / Useful /
Purpose of use
Construction of a mobile sundial
[5]  2019/06/01 18:54   Male / Under 20 years old / High-school/ University/ Grad student / Very /
Purpose of use
physics project
[6]  2019/05/23 17:16   Male / 60 years old level or over / An engineer / Useful /
Purpose of use
Comment/Request
It would great to have a change option on the start stop time with just as many points but not only 24 hours but 12, 6, 3, & 1 so Solar noon time can be precise. Solar noon can be as much as 16 minutes off from noon but your chart peaks at 12:00 noon. Must fix

also have execute button removed and the enter key after changing a number would execute.
[7]  2019/05/15 05:40   Male / 50 years old level / An engineer / Very /
Purpose of use
I wanted to calculate the percentage of the major components of the sun's radiation that would get reflected by a reflective shade cloth deployed vertically 1000 feet via baloons and spaced one every mile in an east west deployment in a given area and then calculate how much local cooling effect this could create, possibly making a local air rotation.
[8]  2019/03/19 15:59   Male / 60 years old level or over / Self-employed people / Very /
Purpose of use
Calculate correct position of solar panel. Excellent chart, thank you!
Comment/Request
I suggest you add explanation of "time zone" since it does not adjust automatically based on longitude. For example USA Eastern time zone normal designation is "GMT-5:00" but you want me to enter "19" ... How is the user supposed to know this?
[9]  2019/03/16 02:34   Male / 60 years old level or over / A retired person / Useful /
Purpose of use
Solving geometry problem
[10]  2019/03/07 07:32   Male / 60 years old level or over / A retired person / Very /
Purpose of use
Correlating sun elevation with PV production figures related to panel orientations.

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