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Table 1

Observation log.

Instrument Wavelength coverage Date Exposure time [s] Nspectra
WASP-33b CARMENES 520–960 nm (contains IRT lines) 2017-01-05 120(a) 93
HARPS-N 383–690 nm (contains H&K lines) 2018-11-08 200 141

KELT-9b CARMENES 520–960 nm (contains IRT lines) 2017-08-06 300, 400 48
HARPS-N 383–690 nm (contains H&K lines) 2017-07-31 600 49

Notes. (a) The first 19 spectra had exposure times shorter than 120 s.

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