Table 1: Observational details.

Setup	Central	Date(s)
	frequencies (GHz)
1	230.154, 230.922	08/15/03, 05/12/04, 05/13/04
2	228.618, 229.386	08/15/03, 05/12/04
3	231.690, 232.458	09/01/03, 05/13/04
4	227.082, 227.850	05/12/04
5	233.226, 233.994	05/13/04