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Table 1

Journal of observations.

HJD texp SNR σLSD φ orb φrot RV
(2 454 000+) (s) (10-4Ic) (1200+) (5+) (km s-1)

730.67708 4 × 800 320 1.0 10.263 0.969  −0.936
731.66854 4 × 900 480 0.6 10.591 0.992  −0.835
734.63876 4 × 900 400 0.8 11.573 1.063  −0.877
735.65936 4 × 900 500 0.6 11.911 1.087  −0.899
737.65226 4 × 900 530 0.6 12.570 1.135  −0.878
738.65755 4 × 900 510 0.6 12.902 1.159  −0.906
739.64068 4 × 900 550 0.5 13.227 1.182  −0.945
740.64321 4 × 900 530 0.6 13.559 1.206  −0.853
745.69059 4 × 900 510 0.6 15.228 1.326  −0.897
746.72039 4 × 400 250 1.2 15.569 1.350  −0.845
750.70071 4 × 900 350 0.9 16.885 1.445  −0.841
754.55168 4 × 650 290 1.0 18.159 1.537  −0.918
762.64276 4 × 650 360 0.9 20.835 1.730  −0.912
763.66335 4 × 650 360 0.9 21.173 1.754  −0.892
764.67493 4 × 650 420 0.7 21.507 1.778  −0.861
765.64663 4 × 650 390 0.8 21.828 1.801  −0.883
766.63943 4 × 650 390 0.8 22.157 1.825  −0.893

Notes. From left to right: heliocentric Julian date at mid-exposure (Col. 1); total exposure time (Col. 2); peak signal-to-noise ratio (per 2.6 km s-1 velocity bin) of each four-subexposure polarisation sequence (Col. 3); rms noise level (relative to the unpolarized continuum level Ic and per 1.8 km s-1 velocity bin) in the circular polarization profile produced by least squares deconvolution (LSD) (Col. 4); orbital cycle (Col. 5); rotational cycle (Col. 6); and the radial velocity associated with each observation (Col. 7).

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