The make the whole calculation more detailed, e.g. include the orbit, there are specialized programs. The one ESA used to use is called ESATAN I used to shar

The make the whole calculation more detailed, e.g. include the orbit, there are specialized programs. The one ESA used to use is called ESATAN I used to share office with a colleague who mostly worked with it. This was at a time when the fad of naming products with an initial "e" had just faded. The surviving victim is "ebay" I guess, but at a time there were many like it. So my natural reading of the huge ASCII art rending on ESATAN's title screen has always been E-SATAN. Sorry ESA. Joking aside, you can download ESATAN here: https://www.esatan-tms.com https://www.esatan-tms.com It's not obvious what the download allows but expect restrictions. I remember the version we used had a HW dongle with heavy price tag every month.