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[ascl:1504.002] SPA: Solar Position Algorithm

The Solar Position Algorithm (SPA) calculates the solar zenith and azimuth angles in the period from the year -2000 to 6000, with uncertainties of +/- 0.0003 degrees based on the date, time, and location on Earth. SPA is implemented in C; in addition to being available for download, an online calculator using this code is available at http://www.nrel.gov/midc/solpos/spa.html.

Code site:
https://midcdmz.nrel.gov/spa/
Described in:
http://adsabs.harvard.edu/abs/2004SoEn...76..577R
Bibcode:
2015ascl.soft04002R

Views: 1995

ascl:1504.002
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