The 2026 TESS data for WASP-167 contain a signal near twice the orbital frequency

We test two new TESS light curves of WASP-167 from March and April 2026. We fit a sinusoid within 0.90 to 1.08 cycles per day. We also fit the exact second orbital harmonic, at 0.98913945 cycles per day. Both new sectors contain a signal near this harmonic. The primary aperture-flux fit gives harmonic semi-amplitudes of 808 and 418 parts per million in sectors 101 and 102. All eight primary processing changes retain a lower point estimate in sector 102. Fits with eight other frequency components give smaller amplitude drops. Joint best frequencies span 0.98292 to 0.98686 cycles per day across three processing methods and zero to eight other components. Conditional residual-block ranges depend on the model. Some amplitude-difference ranges include zero. One pipeline-corrected frequency range includes the exact orbital harmonic. The data extend the observed signal to 2026. They do not establish a physical frequency offset, an intrinsic amplitude drop, or tidal excitation. The detector change and possible variable contamination remain unresolved. The package includes five original light curves, data provenance, source code, figures, and instructions to reproduce the results.

WASP-167 · KELT-13 · TESS · stellar variability · orbital harmonics · public data · correlated noise · photometry