\begin{table}%t1
\caption{The target sample of H$_{2}$O maser sources.}
\label{tab1}
\small%\centerline
 {
\begin{tabular}{llllll}
    \hline \hline
%&&&&&& \\[-8pt]
$00211+6549$             &  $00259+5625^{\xi\dag} $ &  $00420+5530$             &  $00494+5617^{*}$    &  $01134+6429$            &  $W3 (1)$              \\
$02219+6152^{*}$         &  $W3 (3)^{\xi}$          &  $02232+6138^{*}$         &  $02395+6244$        &  $02425+6851^{\dag}$     &  $02485+6902^{\dag}$   \\
$03101+5821$             &  $03167+5848$            & $ 03225+3034^{\dag}$      &  $03245+3002^{\dag}$ &  $04579+4703$            &  $05137+3919^{**}$     \\
$05168+3634^{\xi}$       &  $05274+3345^{*}$        &  $05302-0537^{\xi\dag}$   &  $05327-0457^{\xi}$  &  $KL IRC 2^{\xi}$        &  $05329-0508^{\xi\dag}$\\
$05329-0512^{\dag}$      &  $05335+3609$            &  $05345+3556$             &  $05345+3157$        &  $05358+3543^{*}$        &  $05361+3539$          \\
$05363+2454$             &  $05375+3540^{\xi}$      &  NGC 2024$^{\xi}$         &  $05445+0020^{\dag}$ &  $05466+2316^{\xi\dag}$  &  $05553+1631$          \\
$06001+3014^{\xi\dag}$   &  $MON R2^{\xi}$          &  $06053-0622^{*}$         &  $06055+2039^{*}$    &  $06058+2138^{*}$        &  $06061+2151^{*}$      \\
$06067+2138^{\dag}$      &  $06099+1800^{*}$        &  $06117+1350^{*}$         &  $06127+1418$        &  $06291+0421$            &  $06306+0437^{\dag}$   \\
$06437+0009$             &  $06446+0029^{**}$       &  $06501+0143$             &  $06579-0432^{\dag}$ &  $06584-0852^{\xi}$      &  $07006-0654$          \\
$18265+0028^{\dag}$      &  $18282-0951^{*}$        &  $18290-0924^{*}$         &  $18316-0602^{*}$    &  $18319-0802^{**}$       &  $G23.44-0.18^{*}$     \\
$G23.01-0.41^{*}$        &  $OH24.7+0.2$            &  $18335-0713^{*}$         &  $18341-0727^{*}$    &  $18355-0650^{**}$       &  $18359-0334$          \\
$18360-0537$             &  $18385-0512$            &  $18403-0440^{**}$        &  $18411-0338^{*}$    &  $18434-0242^{*}$        &  $G29.91-0.05^{**}$    \\
$18449-0115^{*}$         &  $W43 (M2)^{\xi}$        &  $18450-0148^{\xi}$       &  $W43 (M3)^{*}$      &  $18455-0200$            &  $18461-0136$          \\
$18469-0132$             &  $18469-0041$            &  $18470-0049^{*}$         &  $18479-0005^{**}$   &  $18487-0015^{*}$        &  $18507+0121^{*}$      \\
$18507+0110^{*}$         &  $18517+0437^{*}$        &  $S76 W$                  &  $18537+0749$        &  $18538+0216^{\xi}$      &  $G35.05-0.52^{\xi}$   \\
$18556+0136^{*}$         &  $18581+0409^{\xi}$      &  $18585+0407^{\xi}$       &  $18592+0108^{*}$    &  $18593+0408^{\xi}$      &  $19008+0530^{\xi}$    \\
$19045+0813$             &  $19061+0652$            &  $19078+0901^{*}$         &  $W49 S^{\xi}$       &  $19088+0902$            &  $19092+0841^{*}$      \\
$19095+0930^{*}$         &  $19110+1045^{*}$        &  $19181+1349$             &  $19207+1410$        &  $19209+1421$            &  $19213+1424^{*}$      \\
$19213+1723$             &  $W51 M^{\xi}$           &  $19287+1816^{\dag}$      &  $19287+1845^{\xi\dag}$  &$19303+1651^{*}$        &  $19363+2018$          \\
$19374+2352$             &  $19388+2357^{*}$        &  $19410+2336^{*}$         &  $19433+2743^{\dag}$ &  $19474+2637$            &  $19598+3324$          \\
$20050+2720^{\dag}$      &  $20056+3350$            &  $20062+3550^{*}$         &  $20081+3122^{*}$    &  $20110+3321^{*}$        &  $20126+4104^{*}$      \\
$20144+3726$             &  $20160+3911^{\xi}$      &  $20188+3928^{\xi}$       &  $20198+3716^{*}$    &  $ON 2 N$                &  $20215+3725^{\xi}$    \\
$20227+4154^{\xi}$       &  $20231+3440^{\xi\dag}$  &  $20275+4001^{**}$        &  $20286+4105^{\xi}$  &  $W75 N^{*}$             &  $W75 S(1)^{\xi}$      \\
$W75 OH^{\xi}$           &  $W75 S(3)^{\xi}$        &  $21007+4951^{\xi\dag}$   &  $21008+4700$        &  $21078+5211^{\xi}$      &  $21144+5430$          \\
$21173+5450$             &  $21206+5145^{\xi}$      &  $21228+5332$             &  $G97.53+3.19^{\xi}$ &  $21306+5540^{**}$       &  $21307+5049$          \\
$21334+5039$             &  $21368+5502$            &  $21379+5106$             &  $21381+5000^{*}$    &  $21391+5026^{\xi}$      &  $21391+5802^{\dag}$   \\
$21413+5442^{*}$         &  $21418+6552$            &  $BFS 11-B$               &  $21479+5510^{\xi}$  &  $21527+5727$            &  $21553+5908$          \\
$21558+5907$             &  $22142+5206$            &  $22176+6303^{**}$        &  $22198+6336^{\dag}$ &  $22199+6322^{\dag}$     &  $22305+5803$       \\
$22475+5939$             &  $22517+6215^{\dag}$     &  $22543+6145^{*}$         &  $22570+5912^{\xi}$  &  $23004+5642$            &  $23004+5642$       \\
$23030+5958^{\xi}$       &  $23116+6111^{*}$        &  $S158^{\xi}$              &  $23138+5945$        &                                   \\
\hline
\end{tabular}}
\medskip      
$^{*}$ Previously known methanol masers. \\
$^{**}$ New detected methanol masers. \\
$^{\xi}$ Not observed due to constraints of observing time. \\
$^{\dag}$ Infrared luminosities less than 10$^{3}$~$L_{\odot}$.
\end{table}