Table 6:

Spectroscopic observations of SN 2007bg.

UT date	JD	Epocha	Rest-frame	Telescope +	Grisms	Exp. time	Range	Airmass
	-2 450 000	(d)	epoch (d)a	instrumentb		(s)	(Å)
21/04/07	4211.5	4.8	4.6	TNG + LRS	LR-B; LR-R	2 2700	3300-9900	1.1
03/05/07	4223.8	17.1	16.5	INT + IDS	R150V	2 1800	3300-9650	1.1
12/05/07	4232.6	25.9	25.0	TNG + LRS	LR-B; LR-R	2 2400	3850-8150	1.3
15/06/07	4266.5	59.8	57.8	WHT + ISIS	R300B; R158B	900; 1800	3200-9500	1.6
18/06/09	5000.3	793.6	767.0	GNT + GMOS	R400	2 3600	4500-7500	1.4

Notes. ^(a) Relative to the date of discovery, MJD 2 454 196.7 (CBET 927).
^(b) TNG = 3.58 m Telescopio Nazionale Galileo, Observatorio del Roque de Los Muchachos, La Palma (Spain). INT = 2.5 m Isaac Newton Telescope, Observatorio del Roque de Los Muchachos, La Palma (Spain). WHT = 4.2 m William Herschel Telescope, Observatorio del Roque de Los Muchachos, La Palma (Spain). GNT = 8.1 m Gemini North Telescope, Mauna Kea, Hawaii (USA).