\begin{table}%t1
\caption{Observed sources. Columns 2 and 3 give the equatorial
coordinates. Columns~4--5 present the galactic coordinates. The
$V_{\rm LSR}$ of the water maser peak velocity is listed in Col.~6. NH$_{3}$ detection is shown in Col.~7. The last column gives
the distance.\label{tab1}} 
%\centerline
{\begin{tabular}{cccccccc}
\hline\hline
Source Name & RA(1950) & Dec(1950) & $l$($\degr~\arcmin$) & $b(\degr ~\arcmin)$
 &$V_p$(km~s$^{-1}$)  & NH$_3$ & $D$ (kpc)\\
\hline
RAS~01133+6434 &~~01~13~19.0& +64~34~54& ~~125~36  & ~~  2~06  &  --53.0  &n & 5.2$^{1}$ \\
IRAS~02485+6902 &~~02~48~34.5& +69~02~20& ~~133~24  & ~~  8~53  &  --33$-$15 &y & 0.86       \\
IRAS~03035+5819 &~~03~03~33.2& +58~19~21& ~~139~55  & ~~  0~12  &  --28.1  &y & 4.1       \\
IRAS~06001+3014 &~~06~00~10.2& +30~14~19& ~~180~50  & ~~  3~59  &   16.11 &n & 0.10       \\
IRAS~06306+0437 &~~06~30~37.3& +04~37~16& ~~206~53  & ~~ --1~56  &   10.08 &y & 1.7       \\
IRAS~06446+0029 &~~06~44~38.6& +00~29~26& ~~212~04  & ~~ --0~44  &   44.89 &n & 6.1$^{3}$ \\
IRAS~06501+0143 &~~06~50~09.8& +01~43~58& ~~211~36  & ~~  1~03  &   55.4  &y & 6.3       \\
IRAS~07207-1435 &~~07~20~43.9& --14~35~42& ~~229~34  & ~~  0~09  &   51.87 &n & 5.3$^{1}$ \\
IRAS~07427-2400 &~~07~42~45.0& --24~00~22& ~~240~19  & ~~  0~04  &   70.94 &n & 6.9$^{1}$ \\
IRAS~18061-1927 &~~18~06~09.6& --19~27~56& ~~ 10~53  & ~~  0~08  &   21.7  &n & 6.1$^{4}$ \\
IRAS~18196-1331 &~~18~19~37.0& --13~31~47& ~~ 17~38  & ~~  0~09  &   27.1  &y & 2.3       \\
IRAS~18265+0028 &~~18~26~32.6& +00~28~35& ~~ 30~50  & ~~  5~12  &    5.29 &y & 0.66       \\
IRAS18308-0503 &~~18~30~50.8& --05~03~26& ~~ 26~25  & ~~  1~41  &   53.7  &y & 3.1       \\
IRAS~18352-0148 &~~18~35~14.7& --01~48~27& ~~ 29~49  & ~~  2~13  &   43.59 &y & 3.2       \\
IRAS~18361-0627 &~~18~36~10.5& --06~27~44& ~~ 25~47  & ~~ --0~08  &   91.1  &y & 5.7       \\
IRAS~18403-0440 &~~18~40~22.0& --04~39~42& ~~ 27~52  & ~~ --0~14  &    9.92 &n & 3.3       \\
IRAS~18414-0339 &~~18~41~28.9& --03~39~52& ~~ 28~53  & ~~ --0~01  &  138.0  &y & 6.3       \\
IRAS~19303+1651 &~~19~30~16.6& +16~51~04& ~~ 52~39  & ~~ --1~05  &   56.2  &n & 5.2       \\
IRAS~19363+2018 &~~19~36~20.5& +20~18~28& ~~ 56~22  & ~~ --0~38  &   36.03 &y & 3.5       \\
IRAS~19471+2641 &~~19~47~06.1& +26~41~16& ~~ 63~07  & ~~  0~27  &   23.8  &y & 2.5       \\
IRAS~19474+2637 &~~19~47~28.7& +26~37~37& ~~ 63~07  & ~~  0~20  &   20.53 &y & 2.5       \\
IRAS~19560+3135 &~~19~56~05.0& +31~35~57& ~~ 68~20  & ~~  1~19  &  --70.9  &n &            \\
IRAS~20110+3321 &~~20~11~05.1& +33~21~11& ~~ 71~32  & ~~ --0~24  &   16.35 &n &            \\
IRAS~20144+3726 &~~20~14~24.7& +37~26~22& ~~ 75~18  & ~~  1~19  &  --56.7  &n &            \\
IRAS~20215+3725 &~~20~21~35.5& +37~25~15& ~~ 76~06  & ~~  0~08  &    5.46 &y & 4.1       \\
IRAS~20306+3749 &~~20~30~41.8& +37~49~20& ~~ 77~29  & ~~ --1~05  &  --89.1  &? & 4.4$^{5}$ \\
IRAS~21008+4700 &~~21~00~49.1& +47~00~42& ~~ 88~06  & ~~  0~25  &  --49.57 &n &            \\
IRAS~21144+5430 &~~21~14~24.1& +54~30~57& ~~ 95~03  & ~~  3~58  &  --88.21 &n &10.3$^{1}$ \\
IRAS~21334+5039 &~~21~33~24.0& +50~39~43& ~~ 94~28  & ~~ --0~48  &  --43.68 &n & 5.9$^{1}$ \\
IRAS~21379+5106 &~~21~37~55.1& +51~06~57& ~~ 95~18  & ~~ --0~56  &  --41.67 &n & 5.6$^{1}$ \\
IRAS~21391+5026 &~~21~39~10.1& +50~26~12& ~~ 95~00  & ~~ --1~35  &  --42.6  &n & 5.6$^{1}$ \\
IRAS~21413+5442 &~~21~41~21.2& +54~42~30& ~~ 98~02  & ~~  1~27  &  --59.79 &n & 7.4$^{2}$ \\
IRAS~23004+5642 &~~23~00~27.0& +56~42~45& ~~108~29  & ~~ --2~48  &  --56.15 &n & 5.6$^{1}$ \\
IRAS~23139+5939 &~~23~13~58.3& +59~39~06& ~~111~15  & ~~ --0~46  &  --59.6  &y & 4.4       \\
IRAS~23151+5912 &~~23~15~08.6& +59~12~25& ~~111~14  & ~~ --1~14  &  --53.7  &y & 5.5       \\
IRAS~05327-0457\degr &~~05~32~46.4& --04~57~38& ~~208~40  & ~~--19~11  &   10.17 &? & 1.3$^{2}$ \\
G23.46-0.20\degr    &~~18~32~01.1& --08~33~33& ~~ 23~27  & ~~ --0~12  &   47.2  &y & 6.0       \\
IRAS~18355-0650\degr &~~18~35~32.6& --06~50~28& ~~ 25~23  & ~~ --0~11  &   65.08  &y & 5.7       \\
IRAS~20144+3526\degr &~~20~14~27.5& +35~26~47& ~~ 73~39  & ~~  0~12  &  --56.7  &n &11$^{5}$ \\
IRAS~20160+3911\degr&~~20~16~05.2& +39~11~22& ~~76~56  & ~~ 2~02  &  --5.55  &y & 3.7       \\
\hline
\end{tabular}}
\par
 \smallskip
\par
  Note: 
\degr\ Denotes the sources associated with HII region and
not included in the analysis; 
1. Wouterloot \& Brand (\cite{Wouterloot89}); 
2. Tatematsu et~al. (\cite{Tatematsu93}); 
3. Wu al. (\cite{Wu01}); 
4. Scoville et~al. (1987); 
5. Bronfman et~al. (\cite{Bronfman96}).
\par
\end{table}