What book of ephemeris You use?

I don't use any ephemeris books, I do everything with Kala software. If you are using tropical signs, any tropical ephemeris will do the job. I dont know what is available these days in sidereal ephemeris. 

The most precise ephemeris is the ephemeris calculated by NASA-JPL. this ephemeris was compressed and made into software libraries and is called Swiss Ephemeris which Kala uses for it's calculations. Both are tropical , swiss ephemeris has other libraries to convert tropical to Siderial and has several famous Ayanamshas built into it.

You can access the PDF version of Tropical , Lahiri-Siderial and fagan-Siderial of Swiss ephemeris here :

https://www.astro.com/swisseph/swepha_e.htm

Here is the link to access the original JPL ephemeris :

https://ssd.jpl.nasa.gov/ephem.html