Detecting H2O with CRIRES+: WASP-20b | Astronomy & Astrophysics (A&A)

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Table 1

Overview of WASP-20b observations during the first night of the science verification run of CRIRES+, as reported by the Paranal Differential Image Motion Monitor (DIMM).

Programme ID	107.22SX.001
Night	2021-09-16; 1:40UT–6:30UT
Phase	0.98-0.02
N_obs	75 (63 + 12)
Exp. time	1 × 180 s
Obs. mode	Nodding A-A-B-B-B-B-A-A
Slit	0.2″
AO loop	Closed
Max resolution	92000
Wavelength setting	K2217 (1981–2394 nm)
Airmass	1.006–1.455
S/N	19–38 (AVG = 28)
Seeing (towards target)	0.82″–1.27″

Notes. N_obs is the total number of observed spectra, acquired before (63) and after (12) crossing the Zenith avoidance area. The exposure time is expressed as NDIT × DIT, where DIT is the detector integration time and NDIT is the number of detector integrations.

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