\begin{table}%t1
\caption{\label{tab1}Log of the spectroscopic observations presented in this paper (see~text for details). If~not indicated otherwise, source coordinates were extracted from the 2MASS catalog and have an accuracy better than~0$\farcs$1.}
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%\centering
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\begin{tabular}{llllcccr}
\hline \hline \noalign{\smallskip}
\multicolumn{1}{c}{{\it (1)}} & \multicolumn{1}{c}{{\it (2)}} & \multicolumn{1}{c}{{\it (3)}} & \multicolumn{1}{c}{{\it (4)}} & 
{\it (5)} & {\it (6)} & {\it (7)} & \multicolumn{1}{c}{{\it (8)}} \\
\multicolumn{1}{c}{Object} & \multicolumn{1}{c}{RA} & \multicolumn{1}{c}{Dec} & 
\multicolumn{1}{c}{Telescope+instrument} & $\lambda$ range & Disp. & \multicolumn{1}{c}{UT date \& time}  & Exposure \\
 & \multicolumn{1}{c}{(J2000)} & \multicolumn{1}{c}{(J2000)} & & (\AA) & (\AA/pix) & 
\multicolumn{1}{c}{at mid-exposure} & time (s)  \\
\hline
IGR J00158+5605         & 00:15:54.19 &   +56:02:57.5 & Cassini+BFOSC       & 3500--8700  & 4.0 & 16 Nov. 2009, 19:46 & 2 $\times$ 1800 \\  
IGR J00465$-$4005       & 00:46:20.68 & $-$40:05:49.1 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 12 Sep. 2009, 04:22 & 2 $\times$ 1800 \\  
IGR J01054$-$7253       & 01:04:42.28 & $-$72:54:03.7 & Radcliffe+Gr. Spec. & 3850--7200  & 2.3 & 16 Aug. 2009, 03:17 & 2 $\times$ 1800 \\  
IGR J01545+6437\tablefootmark{*}     & 01:54:35.29 &   +64:37:57.5 & Copernicus+AFOSC    & 3500--7800  & 4.2 & 07 Dec. 2008, 22:51 & 2 $\times$ 1800 \\  
Swift J0208.4$-$7428    & 02:06:45.17 & $-$74:27:47.7 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 27 Dec. 2009, 01:13 & 2 $\times$ 1200 \\  
IGR J02086$-$1742       & 02:08:34.95 & $-$17:39:34.8 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 03 Dec. 2008, 06:28 & 2 $\times$ 1800 \\  
IGR J03344+1506         & 03:34:32.77 &   +15:08:01.2 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 19 Sep. 2009, 10:31 & 2 $\times$ 1800 \\  
IGR J04451$-$0445\tablefootmark{*}   & 04:44:52.93 & $-$04:46:39.5 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 19 Sep. 2009, 11:49 & 2 $\times$ 1800 \\  
IGR J04571+4527         & 04:57:06.98 &   +45:27:48.5 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 29 Jan. 2009, 07:01 & 2 $\times$ 1800 \\  
IGR J05253+6447         & 05:24:28.61 &   +64:44:43.7 & Cassini+BFOSC       & 3500--8700  & 4.0 & 09 Dec. 2009, 22:35 & 2 $\times$ 1800 \\  
IGR J06058$-$2755       & 06:05:48.96 & $-$27:54:40.1 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 30 Nov. 2009, 02:51 & 2 $\times$ 1000 \\  
IGR J06293$-$1359\tablefootmark{*}   & 06:29:09.3\tablefootmark{\ddagger} & $-$14:04:49\tablefootmark{\ddagger} & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 05 Dec. 2008, 05:38 & 2 $\times$ 1800 \\  
1RXS J080114.6$-$462324 & 08:01:17.03 & $-$46:23:27.5 & NTT+EFOSC2          & 3650--9300  & 5.5 & 01 Jun. 2009, 00:31 &          1200 \\  
IGR J08262$-$3736\tablefootmark{*}   & 08:26:13.65 & $-$37:37:11.9 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 30 Nov. 2009, 08:18 &  2 $\times$ 900 \\  
Swift J0845.0$-$3531    & 08:45:21.38 & $-$35:30:24.2 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 19 Dec. 2009, 06:10 & 2 $\times$ 1800 \\  
IGR J08557+6420         & 08:55:12.54 &   +64:23:45.5 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 30 Jan. 2009, 07:17 & 2 $\times$ 1800 \\  
IGR J09094+2735         & 09:09:18.75 &   +27:37:33.7 & SDSS+CCD Spec.      & 3800--9200  & 1.0 & 17 Jan. 2005, 06:22 &          2700 \\
MCG +04$-$26$-$006      & 10:46:42.51 &   +25:55:53.9 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 03 Dec. 2008, 11:51 & 2 $\times$ 1800 \\  
PKS 1143$-$696          & 11:45:53.62 & $-$69:54:01.8 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 31 Dec. 2009, 06:19 & 2 $\times$ 1800 \\  
IGR J12107+3822         & 12:10:44.28 &   +38:20:10.2 & SDSS+CCD Spec.      & 3800--9200  & 1.0 & 13 Apr. 2005, 07:12 &          2300 \\
IGR J12123$-$5802       & 12:12:26.24 & $-$58:00:20.5 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 31 Dec. 2009, 07:22 & 2 $\times$ 1800 \\  
IGR J1248.2$-$5828      & 12:47:57.84 & $-$58:30:00.2 & Radcliffe+Gr. Spec. & 3850--7200  & 2.3 & 13 Aug. 2009, 17:56 &          1800 \\  
IGR J13168$-$7157       & 13:16:54.28 & $-$71:55:27.1 & CTIO 1.5m+RC Spec.  & 3300--10~500 & 5.7 & 28 Jan. 2010, 05:15 & 2 $\times$ 1200 \\  
IGR J13187+0322\tablefootmark{*}     & 13:18:31.24 &   +03:19:48.9 & SDSS+CCD Spec.      & 3800--9200  & 1.0 & 22 Jan. 2002, 13:07 &          4800 \\
IGR J14301$-$4158\tablefootmark{*}   & 14:30:12.17 & $-$41:58:31.4 & AAT+6dF             & 3900--7600  & 1.6 & 29 Jun. 2003, 12:00 &      600+1200 \\  
Swift J1513.8$-$8125    & 15:14:41.92 & $-$81:23:38.0 & Radcliffe+Gr. Spec. & 3850--7200  & 2.3 & 13 Aug. 2009, 20:37 & 2 $\times$ 1800 \\  
IGR J15311$-$3737       & 15:30:51.79 & $-$37:34:57.3 & Radcliffe+Gr. Spec. & 3850--7200  & 2.3 & 15 Aug. 2009, 19:36 & 2 $\times$ 1800 \\  
IGR J15549$-$3740\tablefootmark{*}   & 15:54:46.76 & $-$37:38:19.1 & AAT+6dF             & 3900--7600  & 1.6 & 12 May 2002, 15:38 &      1200+600 \\  
IGR J16287$-$5021       & 16:28:27.36 & $-$50:22:42.9 & NTT+EFOSC2          & 3650--9300  & 5.5 & 31 May 2009, 01:41 &          1200 \\  
IGR J16327$-$4940\tablefootmark{*}   & 16:32:39.95 & $-$49:42:13.8 & Radcliffe+Gr. Spec. & 3850--7200  & 2.3 & 10 Aug. 2009, 20:44 & 2 $\times$ 1800 \\  
1RXS J165443.5$-$191620 & 16:54:43.74 & $-$19:16:31.1 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 21 Jun. 2009, 06:13 & 2 $\times$ 1800 \\ 
IGR J17009+3559         & 17:00:53.00 &   +35:59:56.2 & Copernicus+AFOSC    & 3500--7800  & 4.2 & 16 Oct. 2009, 18:04 & 2 $\times$ 1800 \\  
IGR J18078+1123         & 18:07:49.91 &   +11:20:49.1 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 21 Jun. 2009, 18:49 & 2 $\times$ 1800 \\  
IGR J18308+0928         & 18:30:50.64 &   +09:28:41.7 & Cassini+BFOSC       & 3500--8700  & 4.0 & 18 May 2009, 23:24 & 2 $\times$ 1200 \\  
IGR J18311$-$3337\tablefootmark{*}   & 18:31:14.75 & $-$33:36:08.5 & AAT+6dF             & 3900--7600  & 1.6 & 27 Jul. 2003, 12:48 &      1200+600 \\  
IGR J19077$-$3925       & 19:07:50.36 & $-$39:23:31.9 & AAT+6dF             & 3900--7600  & 1.6 & 26 Jun. 2003, 15:25 &      1200+600 \\  
IGR J19113+1533\tablefootmark{*}     & 19:11:18.83 &   +15:32:32.8 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 04 Dec. 2008, 02:06 &          1200 \\  
IGR J19118$-$1707\tablefootmark{*}   & 19:11:42.64 & $-$17:10:05.1 & AAT+6dF             & 3900--7600  & 1.6 & 21 Apr. 2004, 18:34 &      1200+600 \\  
1RXS J191928.5$-$295808 & 19:19:28.04 & $-$29:58:08.0 & AAT+6dF             & 3900--7600  & 1.6 & 10 Sep. 2002, 10:10 &      1200+600 \\  
IGR J19552+0044         & 19:55:12.47 &   +00:45:36.6 & Cassini+BFOSC       & 3500--8700  & 4.0 & 19 May 2009, 01:58 & 2 $\times$ 1800 \\  
1RXS J211336.1+542226   & 21:13:35.38\tablefootmark{\dagger} & +54:22:32.8\tablefootmark{\dagger} & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 22 Jun. 2009, 10:21 & 3 $\times$ 1800 \\  
1RXS J211928.4+333259   & 21:19:29.13 &   +33:32:57.0 & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 04 Dec. 2008, 03:12 & 2 $\times$ 1800 \\  
1RXS J213944.3+595016   & 21:39:45.1\tablefootmark{\ddagger} & +59:50:14\tablefootmark{\ddagger} & SPM 2.1m+B\&C Spec. & 3500--7800  & 4.0 & 24 Jun. 2009, 10:44 & 2 $\times$ 1800 \\  
IGR J22292+6647         & 22:29:13.84 &   +66:46:51.5 & TNG+DOLoReS         & 3800--8000  & 2.5 & 13 Aug. 2008, 01:27 &          1800 \\
\hline
\end{tabular}
\tablefoot {\tablefoottext{*}{Tentative association (see text);}
\tablefoottext{\dagger}{coordinates extracted from the USNO catalogs, having an accuracy of about 0$\farcs$2 (Deutsch \cite{Deut99}; Assafin et~al. \cite{Assa01}; Monet et~al. \cite{Mone03});}
\tablefoottext{\ddagger}{coordinates extracted from the DSS-II-Red frames, having an accuracy of $\sim$1$''$.}}
\vspace*{4mm}
\end{table}