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private |
[in] | jd | forecast julian day |
[in] | fjd | forecast fraction of julian day |
[in] | dlt | declination angle of sun in radians |
[in] | alp | right ascension of sun in radians |
[in] | r1 | earth-sun radius vector in meter |
[in] | solc | solar constant in \(w/m^2\) |
Referenced by sol_update().