Massive stars exploding in a He-rich circumstellar medium - XI. Diverse evolution of five Ibn SNe 2020nxt, 2020taz, 2021bbv, 2023utc, and 2024aej

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Table F.5.

Log of the spectroscopic observations of SN 2024aej.

Date	MJD	Phase^a	Instrumental setup	Grism/Grating	Spectral range	Exposure time	Resolution
		(d)			(Å)	(s)	(Å)
20240120	60329.25	+1.2	FTN+FLOYDS	red/blu	3500−10000	2700	16
20240122	60331.28	+3.2	FTN+FLOYDS	red/blu	3500−10000	2700	16
20240129	60338.26	+10.2	FTN+FLOYDS	red/blu	3300−10000	2700	16
20240204	60344.21	+16.1	FTN+FLOYDS	red/blu	3500−10000	3600	16

^aPhases are relative to r-band maximum light (MJD = 60328.1 $_{- 0.2}^{+ 0.5}$ $^{+\ 0.5}_{-\ 0.2}$ ; 2024-01-19) in observer frame.

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