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sim_49_outer_heliosphere_forecast_2026
PASS
0.9s - peak 0.0 MB

Solar-System flybys see identically zero

Purpose

Forecast the anomalous acceleration that a Turyshev-class drag-free probe at 10–1000 AU would measure under SVT (IR-protected), SVT at the LLR G˙/G\dot{G}/G saturation, and a benchmark chameleon ΔG/G∼10−6\Delta G/G\sim 10^{-6} in the ISM. Compare to Interstellar-Probe (∼10−12 m/s2\sim 10^{-12}\,\mathrm{m/s^{2}}) and LISA-equivalent (∼10−14 m/s2\sim 10^{-14}\,\mathrm{m/s^{2}}) sensitivities.

What it proves

With the IR protection of sim_46, SVT's Solar-System signal is ∣aanom∣<10−18 m/s2|a_\mathrm{anom}|<10^{-18}\,\mathrm{m/s^{2}} even at 200 AU over a decadal baseline — six orders of magnitude below the noise floor of every realistic mission. A 5σ\sigma detection at 200 AU / 10 yr would require ∣G˙/G∣≥3×10−6 yr−1|\dot{G}/G|\ge 3\times 10^{-6}\,\mathrm{yr}^{-1}, a hundred times worse than the current LLR bound. Outer-Solar-System missions therefore cannot falsify SVT's RG flow; they can confirm the flatness.

Relation to current theory

Turyshev argues that deep drag-free missions are the best road to the fifth force. For scalar-tensor theories that is true. For SVT it is not, precisely because the screening is temporal: today's Solar System lies inside the IR fixed point, so the flow is invisible at every radius. Sim_49 turns this into an explicit null forecast and hands the falsifiability question to cosmology (sim_50).

Key equation
∣aSVT,IR(r)∣  ≤  10−14 m/s2∀ r∈[10, 2000] AU|a_{\mathrm{SVT,IR}}(r)| \;\le\; 10^{-14}\,\mathrm{m/s^{2}}\qquad\forall\,r\in[10,\,2000]\,\mathrm{AU}

Plots

sim_49_a_vs_r_forecast.png
sim_49_a_vs_r_forecast.png
sim_49_decadal_residual.png
sim_49_decadal_residual.png
sim_49_mission_scan.png
sim_49_mission_scan.png

Scalar metrics

GM_sun132700000000000000000 m^3/s^2
mission duration10 yr
IP accelerometer noise1e-12 m/s^2
LISA drag-free equiv.1e-14 m/s^2

stdout tail

=================== VALIDATION ===================
  GM_sun                  : 1.327e+20 m^3/s^2
  mission duration        : 10.0 yr
  IP accelerometer noise  : 1e-12 m/s^2
  LISA drag-free equiv.   : 1e-14 m/s^2
  a_SVT_IR(all r)  <= 1e-14 : PASS  (max 0.0e+00)
  a_SVT_LLR(200 AU,10 yr)  : 1.48e-18 m/s^2  (IP margin 6.7e+05x)
  Required |Gdot/G| 5sig @200AU: 3.37e-06 yr^-1  (> 100x LLR? PASS)
  Overall                     : PASS

  SVT Prediction: Solar-System flybys see identically zero
  variable-G signal. Falsifiability must come from high-z cosmology
  (sim_38 / sim_39 / sim_43 / sim_50).
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