- #1
cptolemy
- 48
- 1
Greetings,
This is actually a simple question. I'm working on the JPL ephemeris original data. My question is: If I wish to calculate the heliocentric position of, let's say, Mars from the original JPL raw data, must I calculate first the x,y and z position (an easy process) and then subtract the 11th value - the Sun - to these coordinates?
The JPL frame is referred to the SS barycenter, right? So I must subtract these values I presume.
Kind regards,
CPtolemy
This is actually a simple question. I'm working on the JPL ephemeris original data. My question is: If I wish to calculate the heliocentric position of, let's say, Mars from the original JPL raw data, must I calculate first the x,y and z position (an easy process) and then subtract the 11th value - the Sun - to these coordinates?
The JPL frame is referred to the SS barycenter, right? So I must subtract these values I presume.
Kind regards,
CPtolemy