\\ Species Tag:        &   76009 & Name:&  C4Si
\\ Version:            &       1 & & $^{28}$Si isotope
\\ Date:       & Feb. 1996       & & 
\\ Contributor:&   H. S. P. M\"uller & & 
\\             &                 & & 
\\ Lines Listed:       &     229 & Q(300.0)=&     4077.1428
\\ Freq. (GHz) $<$     &     700 & Q(225.0)=&     3057.7099
\\ Max. J:             &     229 & Q(150.0)=&     2038.4265
\\ LOGSTR0=            &    -7.0 & Q(75.00)=&     1019.3010
\\ LOGSTR1=            &    -7.0 & Q(37.50)=&      509.7975
\\ Isotope Corr.:      &  -0.055 & Q(18.75)=&      255.0607
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&      127.6962
\\ $\mu_a$ = & 6.3               & A=& 
\\ $\mu_b$ = &                   & B=& 1533.772
\\ $\mu_c$ = &                   & C=& 
\headend 
 
The transitions and dipole were taken from M. Ohishi, N. Kaifu, K.
Kawaguchi, A. Murakami, S. Saito, S. Yamamoto, S.-I. Ishikawa, Y.
Fujita, Y. Shiratori, and W. M. Irvine, 1989, Astrophys. J. {\bf 345},
L83. The dipole moment is an $ab \ initio$ value.