RST → FRCFD → LIGO Audit Template

### RST → FRCFD → LIGO Audit Template (Event: __________) | Quantity | Detector | Measured Value | GR Baseline | Classification | Notes | |-----------------------------------|----------|----------------------------------------|--------------------------------------------------|----------------------------------------------------|---------------------------------------------------------------------------------------| | Fundamental frequency \(f_0\) | H1 | [Hz, SNR] | [Kerr \(f_0\) for remnant mass/spin] | [Detector ghost / RST candidate / GR baseline] | [SNR, extraction quality, cross‑validation status] | | | L1 | [Hz, SNR] | [Kerr \(f_0\) for remnant mass/spin] | [Detector ghost / RST candidate / GR baseline] | [Matches GR? clean fundamental?] | | Harmonic / modal ratio \(f_{\text{harm}}/f_0\) | H1 | [ratio] | 2.0 (or GR‑expected) | [Inconclusive / RST candidate / GR baseline] | [Non‑integer? depends on weak fundamental? SNR context] | | | L1 | [ratio] | 2.0 (or GR‑expected) | [Inconclusive / RST candidate / GR baseline] | [Validates pipeline? harmonic coherence?] | | Drift / temporal shift \(f_0(t)\) | H1 | [sliding‑window \(f_0(t)\)] | Smooth Kerr decay | Pending / [RST candidate] | [Transient shifts? % deviation? SNR limits] | | | L1 | [sliding‑window \(f_0(t)\)] | Smooth Kerr decay | Pending / [RST candidate] | [Cross‑detector comparison of drift pattern] | | Symmetry / cross‑detector structure | H1 vs L1 | [list modes, SNRs, anomalies] | Symmetric, cross‑detector coherent modes | [Mixed / GR baseline / RST candidate] | [Coherent modes vs local anomalies; anisotropy / environment pattern, if any] | #### Usage Notes - **Measured Value:** Always include SNR and uncertainties where available. - **GR Baseline:** Compute from remnant mass/spin via Kerr ringdown formulas. - **Classification:** - **Detector ghost:** present in pre‑event PSD. - **GR baseline:** Kerr‑consistent, cross‑detector coherent. - **RST candidate:** ringdown‑only, deviates from GR, coherent or environment‑patterned. - **Notes:** Capture instrument quirks, pipeline settings, and why something is (or isn’t) promoted to “RST candidate”.

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