Relative transmission spectrum from the B600 and R150 observations from the analysis in which we employed a common-mode correction of systematics (Section 4.2.2). In the case of the R150 observations blueward of 700 nm, the spectrum is the weighted mean of the spectra from the individual observations. Redward of 700 nm, we were only able to use observation 3, which is why the precision is low. Points that are contaminated with bad columns or with strong telluric or stellar features have been removed (see Section 5.2). The data used to create this figure are available.