Daily Motion of Shani Madhyamam

days = ctod(mdate)-ctod(“13/04/1899”)
y = year(ctod(mdate))-1899

d = 299.1283095310-(0.0000005574)*y

t = (days * d)/3600
JUM = (a +t)%360

---

calculation of sat’s longitude ***

sha = 235.3369
shd = 120.4547553496+(0.0000000312)*y