I increased the error tolerance slightly for the Jupiter moons model.
This shrank the model tables significantly, giving me some more
breathing room to stay under 100K download size.
The optimizer makes the Jupiter moons series as short as
possible while keeping error within an acceptable limit.
This should help produce much smaller code, especially
for JavaScript where it really matters.
Now that I no longer need to generate Chebyshev models
or TOP2013 models for Pluto, I got rid of all the
code in generate.c that is no longer needed.
This whacked about 1000 lines of code.
The high-frequency wobble in the Pluto position function was bothering me.
Decreased the arcminute error threshold from 1.0 to 0.5, resulting
in a much larger model, but a lot less ripple:
547 [ 78 140 94 115 21 99]
This is another way to explore possible solutions in a random order
so that we don't keep going in the same directions each time.
Found a better solution:
219 [ 27 63 61 58 6 4]
winner: 0.998305 arcmin : 228 [ 37 63 60 58 6 4]
This script keeps running the ray search followed by the nudge search.
If it finds a better solution that the existing one, it replaces it.
Found the above solution after about 30 minutes.
I realized that I still was telling the code to assume the
time coordinate never gets more than 0.2 millennia away from J2000.
But in fact, it is getting 0.5 millennia away. Fixed that, and
immediately found a smaller model that works.
OptimizeTop: 255 terms [ 41 62 71 68 9 4]
Relax apparent angular error threshold from 0.4 to 1.0 arcminutes.
No longer compare TOP2013 to NOVAS while optimizing.
Use worst-case distance between Earth and Pluto:
Pluto radius from Sun, minus Earth aphelion distance.
Sample 503 points intead of 293.
Measure 2 full orbits before J2000 and 2 full orbits after J2000.
Statistics for output/8.top :
OptimizeTop: 268 terms [ 34 57 72 90 9 6]
Generating an embryonic TOP2013 Pluto model, along with the old
Chebyshev resampling model of Pluto, into the Linux and Windows
build processes.
The TOP2013 Pluto model isn't used for anything, and it isn't
optimized properly yet, but at least this helps validate my code
automatically as I go forward.
Adjust VSOP models for planets to bring their prediction errors beneath
0.1 degrees of a total orbit.
ctest no longer runs tests when no command line arguments are given.
That was annoying because I kept running it by accident.
Include an extra 4 terms in the radial component of the VSOP
model for Neptune. The code automatically picks the 4 terms
that maximize the time derivative's highest possible contribution.
Force regeneration of planet models in Travis CI,
just to ensure that everything is still working.
This also will detect if the planet models change
unexpectedly on my development machines.
