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”.