SevenSpheres wrote:Why don't you post the tutorial here, instead of making people have to download it? It's just text and images.
Good idea, I will post it here.
A tutorial to get .xyz/.xyzv files for Celestia
• 1. Go to
https://ssd.jpl.nasa.gov/horizons/app.html • 2. Set "Ephemeris Type" to "Vector Table".
• 3. Select the Target Body. I will use the Moon for example.
• 4. Choose the Coordinate Center (the reference body), for example the Earth.
• 5. Set the time span and time step size.
• 6. Set the "Table Settings" like this:
• 6.1 Set "Output Quantities" either to "1. Position components {x,y,z} only [.xyz file]" or to "2. State vector {x,y,z,Vx,Vy,Vz} [.xyzv file]"
• 6.2 Set the other parameters to this:
• 7. Click "Generate Ephemeris".
• 8. The result should look like this:
• 9. Save the ephemeris.
• 10. Open the generated horizons_results.txt file in any text editor.
• 11. Delete everything before and the (first) "$$SOE" line:
• 12. Delete everything after and the (second) "$$SOE" line (near the ending of the file):
• 13. Delete all the " = A.D. ####-###-## ##:##:##.#### TDB":
• 14. The file should now look like this:
• 15. Rename the file to ###.xyz or ###.xyzv (see 6.1)
• 16. The file is now ready for use with Celestia!
Get XYZ XYZV files for Celestia.zip
