\begin{table}%t1 \caption{\label{t1}Log of the spectroscopic observations presented in this paper (see text for details). If not otherwise indicated, source coordinates are extracted from the 2MASS catalogue and have an accuracy better than 0$\farcs$1.} \par %\centerline { \begin{tabular}{llllcccr} \hline\hline \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 J00333+6122 & 00:33:18.34 & +61:27:43.3 & WHT+ISIS & 5050--10~300 & 1.8 & 05 Jan. 2008, 22:51 & 2 $\times$ 1000 \\ % R158R, 1.5 Swift J0216.3+5128 & 02:16:26.73$^\dagger$ & +51:25:25.1$^\dagger$ & WHT+ISIS & 5050--10~300 & 1.8 & 06 Jan. 2008, 00:30 & 2 $\times$ 1800 \\ % R158R, 1.5 IGR J02466$-$4222 & 02:46:37.03 & $-$42:22:01.5 & AAT+6dF & 3900--7600 & 1.6 & 30 Aug. 2003, 18:06 & 1200 + 600 \\ % 580V+425R, 6.7 fibre IGR J02524--0829 & 02:52:23.39 & $-$08:30:37.5 & SDSS+CCD Spc. & 3800--9200 & 1.0 & 23 Dec. 2000, 04:07 & 2700 \\ IGR J05270$-$6631 & 05:26:14.45$^\dagger$ & $-$66:30:45.0$^\dagger$ & 3.6~m+EFOSC & 3685--9315 & 2.8 & 02 Jan. 2008, 06:19 & 900 \\ % Gr13, 1.0 IGR J08390$-$4833 & 08:38:49.11 & $-$48:31:24.8 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 04 Mar. 2008, 05:19 & 2 $\times$ 1800 \\ % GR13/I, 1.5 IGR J09025$-$6814 & 09:02:39.46 & $-$68:13:36.6 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 19 Feb. 2007, 06:11 & 2 $\times$ 1800 \\ % Gr13/I, 1.5 IGR J09253+6929 & 09:25:47.56 & +69:27:53.6 & Cassini+BFOSC & 3500--8700 & 4.0 & 29 Mar. 2008, 21:13 & 2 $\times$ 1800 \\ % Gr4, 2.0 IGR J10147$-$6354 & 10:14:15.55 & $-$63:51:50.1 & 3.6~m+EFOSC & 3685--9315 & 2.8 & 02 Jan. 2008, 06:44 & 900 \\ % Gr13, 1.0 IGR J11098$-$6457 & 11:09:47.79 & $-$64:52:45.3 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 04 Mar. 2008, 06:44 & 2 $\times$ 1200 \\ % Gr13/I, 1.5 IGR J11435$-$6109 & 11:44:00.30 & $-$61:07:36.5 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 01 Jul. 2008, 23:13 & 2 $\times$ 1200 \\ % Gr13/I, 1.5 1ES 1210$-$646 & 12:13:14.79 & $-$64:52:30.5 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 04 Mar. 2008, 07:26 & 2 $\times$ 900 \\ % Gr13/I, 1.5 IGR J12415$-$5750 & 12:41:25.74 & $-$57:50:03.5 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 04 Mar. 2008, 08:10 & 2 $\times$ 1200 \\ % Gr13/I, 1.5 IGR J16426+6536 & 16:43:04.07$\dagger$ & +65:32:50.9$\dagger$ & TNG+DOLoRes & 3800--8000 & 2.5 & 04 Feb. 2008, 06:11 & 2 $\times$ 900 \\ % LR-B, 1.0 IGR J17404$-$3655 & 17:40:26.86 & $-$36:55:37.4 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 02 Jul. 2008, 05:36 & 2 $\times$ 2400 \\ % Gr13/I, 1.5 IGR J18173$-$2509 & 18:17:22.3$^*$ & $-$25:08:43$^*$ & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 02 Jul. 2008, 04:04 & 2 $\times$ 2400 \\ % Gr13/I, 1.5 IGR J18249$-$3243 & 18:24:55.92 & $-$32:42:57.7 & CTIO 1.5~m+RC Spec. & 3300--10~500 & 5.7 & 04 Mar. 2008, 09:21 & 2 $\times$ 1200 \\ % Gr13/I, 1.5 IGR J18308$-$1232 & 18:30:49.88$\dagger$ & $-$12:32:18.7$\dagger$ & SPM 2.1~m+B\&C Spec. & 3450--7650 & 4.0 & 29 Jun. 2008, 07:49 & 3 $\times$ 2400 \\ % 300, 2.5 IGR J19267+1325 & 19:26:27.00 & +13:22:05.0 & SPM 2.1~m+B\&C Spec. & 3450--7650 & 4.0 & 30 Jun. 2008, 06:15 & 2 $\times$ 2400 \\ % 300, 2.5 IGR J21347+4737 & 21:34:20.38 & +47:38:00.2 & Cassini+BFOSC & 3500--8700 & 4.0 & 11 May 2008, 01:01 & 2 $\times$ 1800 \\ \hline \end{tabular}} \par \medskip $^\dagger$ Coordinates extracted from the USNO catalogues, having an accuracy of about 0$\farcs$2 (Deutsch \cite{Deutsch99}; Assafin et~al. \cite{Assafin01}; Monet et~al. \cite{Monet03}).\\ $^*$ Coordinates extracted from the DSS-II-Red frames, having an accuracy of $\sim$1$''$. \end{table}