Near-infrared HeI (left), Paβ (center), and Brγ (right) line profiles obtained over nine days during the December 2021 SPIRou run. Top: Line profiles are plotted as a function of Julian date (left subpanels) and rotational phase (right subpanels). The colors represent successive rotational cycles. Bottom: 2D periodograms across the line profiles. The dotted horizontal red line drawn at a frequency of 0.166 day⁻¹ indicates the stellar rotational period. The white curve displays the mean line profile. The color code reflects the periodogram power from zero (blue) to 1 (red).