Keplerian Elements for Approximate Positions of the Major Planets Based on the paper written by E. M. Standish, Solar System Dynamics Group JPL/Caltech
https://ssd.jpl.nasa.gov/?planet_pos
Code is also available for download on GitHub
If you note unusual/inconsistent battery drain in the Samsung Galaxy S8, S9 and perhaps S10 phones and there is no obvious apps draining the energy in the system power consumption tool here is the fix:
Tulip Composer is a free software for creating road book tulip diagrams.
The software was updated to 2.0 in 2019, 14 years after the first release. Tulip Composer now works online.
Go to the Tulip Composer Online
To learn more about Tulips and the Tulip Composer, visit the official webpage.