Table 2: Log of spectroscopic observations.

Date		 Tel $\lambda$ (Å) T (s) # R(Å)
(1) (2) (3) (4) (5) (6)
11 May 1998 TLS 4300-5300 900 21 0.14
12-18 May 1998 TLS 5650-10 000 900 75 0.16
19-22 Jan. 2002 Modspec 4250-7550 120 62 3.5
16 Feb. 2002 Modspec 4250-7550 120 5 3.5
19 Feb. 2002 Modspec 4250-7550 120 10 3.5
5-7 May 2002 CCDS 4180-5100 300 18 3.2
13 May 2002 CCDS 4180-5100 360 1 3.2
13 May 2002 CCDS 4180-5100 600 1 3.2
12 Jun. 2002 MkIII 4250-7550 90 1 3.7
13 Jan. 2004 Modspec 4250-7550 180 1 3.5
17-18 Jan. 2004 Modspec 4250-7550 180 2 3.5
6 Mar 2004 Modspec 4250-7550 180 2 3.5
30 Jan. 2006 ISIS 3000-8000 180 1 5
30 Jan. 2006 ISIS 3000-8000 240 6 5
15 May 2006 DAO 3500-5150 720 6 4.8
Notes. Col. (1): observing date; Col. (2): used spectrograph, where TLS indicates the "Karl Schwarzschild'' Tautenburg Echelle Spectrograph mounted at the the 2 m telescope of the Thüringer Landessternwarte; Modspec stands for the 2.4 m Hiltner Telescope (MDM) Modular Spectrograph; CCDS is the 2.4 m Hiltner Telescope CCD Spectrograph; MkIII is for the 2.4 m Hiltner Telescope Mark III Spectrograph; and DAO stands for the Cassegrain Spectrograph at the 1.8 m of the DAO. Col. (3): wavelength range of the spectra; Col. (4): integration time per observation; Col. (5): number of observations; Col. (6): resolution as derived from the FWHM of the arc lines.

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