Here were the results for my test for New Horizon. It showed that there was essentially zero deviation in the path.
Where am I in error?
===== from my python script======
Starting New Horizons G-variation analysis…
✓ Loaded: data/naif0012.tls
✓ Loaded: data/pck00010.tpc
✓ Loaded: data/de418.bsp
✓ Loaded: data/jup365.bsp
✓ Loaded: data/sat453.bsp
✓ Loaded: data/nh_de433_od161.bsp
✓ Loaded: data/nh_nep081.bsp
✓ Loaded: data/nh_ura111.bsp
✓ Loaded: data/nh_recon_pluto_od122_v01.bsp
✓ Loaded: data/nh_recon_arrokoth_od147_v01.bsp
Collecting spacecraft data…
Successfully processed 171 epochs, failed: 0
Saved 171 entries to new_horizons_g_analysis.csv
============================================================
GRAVITATIONAL PARAMETER VARIATION ANALYSIS
============================================================
Standard G: 6.674300e-11 m³/kg/s²
Effective G Statistics:
Mean: 6.674300e-11 m³/kg/s²
Std Dev: 4.205641e-27 m³/kg/s²
Min: 6.674300e-11 m³/kg/s²
Max: 6.674300e-11 m³/kg/s²
Deviation from Standard G (%):
Mean: -0.000000%
Std Dev: 0.000000%
Range: -0.000000% to 0.000000%
Correlation between distance and G deviation: 0.021636
One-sample t-test (H0: deviation = 0):
t-statistic: -4.472136
p-value: 1.411635e-05
Significant: Yes
Trend analysis:
Slope: 2.602618e-18 %/day
R²: 0.000467
p-value: 7.789815e-01
Creating visualizations…
============================================================
INTERPRETATION & INSIGHTS
============================================================
• Deviations are extremely small (< 10⁻⁶%), suggesting:
Analysis complete. Cleared 10 SPICE kernels.
G deviations: < 10⁻⁶% (essentially zero)
Standard deviation: 4.2 × 10⁻²⁷ m³/kg/s² (incredibly tiny)
No significant gravitational anomalies across New Horizons’ trajectory
============end output============
This analysis shows we can detect gravitational variations to parts per million precision. This is far more sensitive than needed to detect the predicted dark matter effects.
Local dark matter density: ~0.3 GeV/cm³ ≈ 5 × 10⁻²² kg/m³
Over New Horizons’ multi-billion mile journey, this should create detectable gravitational perturbations. This precision (10⁻⁶%) is more than sufficient to see these effects.
If dark matter comprises 85% of galactic mass and creates the dramatic effects seen in galaxy rotation curves, why is it completely absent from your high-precision New Horizons tracking?
You might say, “Dark matter is smoothly distributed, so it wouldn’t create detectable perturbations.”
If it’s smooth enough to be undetectable locally, how does it create the dramatic, structured effects needed for galaxy rotation curves? You can’t have it both ways, either it has gravitational effects or it doesn’t.
But you might say, “The local dark matter density is just too low.”
But we’re supposedly embedded in a dark matter halo that dominates our galaxy’s mass. The distribution that explains galactic effects should be detectable with our precision.
If you really want the python code, I could put it on my GitHub.