Eight fixed linear fits give a smaller 192.32-day amplitude in HARPS-N than in APF for HD 219134

We tested the reported 192.32-day velocity signal in HD 219134 with public APF and HARPS-N data. The APF data give 295 local observing nights. The full cited HARPS-N table gives 97 nights over 1047 days. The HARPS-N subset in SPORES data version 17058229 contains only 17 of those nights over 35 days. The other 80 source nights are absent from that subset. We compared fixed sine and cosine curves under eight linear models. Each instrument has separate terms for other velocity changes. Each nightly variance includes an added term of (2 m/s) squared. The main model gives amplitudes of 2.20 m/s in APF and 0.75 m/s in HARPS-N. The fixed APF curve raises the HARPS-N conditional fit error in all eight models at the stated season origin. Two known signals lower that error in the main model. All 872 nearby-period tests also give negative transfer scores. However, some shifted season boundaries reverse the score. The main 90-day block sign interval for the score includes zero. Longer noise blocks also weaken the evidence against a common curve. The results do not exclude every planet near 192 days. We publish the coverage audit, source checks, code, result tables, figures, and reproduction instructions.

HD 219134 · radial velocity · planet candidates · HARPS-N · Automated Planet Finder · data provenance · signal transfer · block sign test