quality_control.diagnostics.level4

Diagnostics for KPF Level 4 (RVs and CCFs) data products.

Ports the per-order BJD and barycentric-RV dispersion statistics from the v2.12 AnalyzeL2.compute_statistics: photon-weighted means (BJDMEAN / BERVMEAN) and the spread of the per-order values about them (BJDSTD / BJDRNG in seconds, BERVSTD / BERVRNG in m/s) plus the per-order BERV percent deviation (BERVMAXP / BERVMINP). They are weighted by the per-order CCF-combination WEIGHT column and computed on the primary science orderlet (SCI2), matching the old single-table behavior.

The v2.12 AGES*/AGEU* wave-cal-age metrics needed the time-series database (calibration history) and are out of scope for the DB-free vNext L4.

class kpfpipe.quality_control.diagnostics.level4.DiagL4(kpf_obj)

Bases: Diagnostics

Diagnostics for KPF Level 4 RV/CCF products.

LEVEL = 'L4'

berv_dispersion()

Weighted-mean barycentric RV correction and per-order spread (SCI2).

bjd_dispersion()

Photon-weighted mean BJD_TDB and its per-order spread (SCI2).