**Table 1:** Positions and flux densities of C7 at 22 GHz.
$t_{{\rm obs}}$	S	$\Delta x$	$\Delta y$
$[{\rm year}]$	$[{\rm Jy}]$	$[{\rm mas}]$	$[{\rm mas}]$
1989.25 $^{\dag }$	$0.19\pm0.02$	$0.04\pm0.02$	$0.01\pm0.01$
1991.46	$0.80\pm0.04$	$0.09\pm0.05$	$-0.01\pm0.01$
1991.86	$3.29\pm0.49$	$0.12\pm0.01$	$0.03\pm0.01$
1992.45	$6.20\pm0.36$	$0.18\pm0.01$	$0.00\pm0.01$
1992.86	$5.49\pm0.30$	$0.28\pm0.01$	$0.01\pm0.01$
1993.13	$3.60\pm0.10$	$0.34\pm0.01$	$-0.02\pm0.01$
1993.72	$2.23\pm0.12$	$0.60\pm0.04$	$-0.10\pm0.02$
1994.45	$1.04\pm0.10$	$0.90\pm0.09$	$-0.12\pm0.08$
1995.85	$1.21\pm0.06$	$1.20\pm0.08$	$-0.10\pm0.08$
1996.42	$0.88\pm0.05$	$1.36\pm0.08$	$-0.07\pm0.07$
1996.82	$0.69\pm0.04$	$1.55\pm0.08$	$-0.08\pm0.12$
1997.40	$0.64\pm0.10$	$1.87\pm0.10$	$-0.22\pm0.13$
1997.62	$0.59\pm0.07$	$2.02\pm0.10$	$-0.24\pm0.12$
1997.90	$0.47\pm0.07$	$2.10\pm0.10$	$-0.30\pm0.11$
1998.02	$0.47\pm0.08$	$2.02\pm0.25$	$-0.24\pm0.14$
1998.99	$0.50\pm0.10$	$2.63\pm0.20$	$-0.15\pm0.14$
1999.12	$0.28\pm0.10$	$2.69\pm0.20$	$-0.36\pm0.14$
1999.64	$0.17\pm0.20$	$2.87\pm0.20$	$-0.34\pm0.15$

Note: $\dag$ - detection is likely to be confused due to blending between the core and the preceeding jet component C6. References: 1989.25-1993.72 (L96); 1994.45 (Leppänen et al. 1995); 1996.42-1997.40 (R00); 1997.62-1999.64 (Klare 2003).

Source LaTeX | All tables | In the text

	1 Introduction
	2 The binary black hole model
	3 The quasar 3C 345
	4 Application of the BBH model
	5 Properties of the BBH system in 3C 345
	6 Discussion
	7 Conclusions
	References