Trying to determine accuracy of moon distance.

Using WSJTX Astronomy window, PSTRotator and https://www.mooncalc.org

All 3 seem to agree pretty well on Az and El but distance is off by about 5000km comparing WSJTX to the others.


As of 13:00 or so I see
WSJTX 383,115
PSTRotator 388074
MoonCalc  388199

The equatorial radius of the moon is 1,738km so that doesn't explain the difference (of about 1.3%).

It seems the code in wsjtx was done with certain deliberation so I'm hoping WSJTX is more accurate.  But how to resolve who's right?

Mike W9MDB