Table 4: Maximum errors (milli-arcseconds) in RA and Dec for the astrometric reference stars.
Epoch RA Dec

Feb.-Apr. 1997 12.0 4.2

January 1999 4.4 4.3

January 2000 32 34

December 2000 4.1 7.0

Dec. 2002 Jan. 2003 5.2 3.2

**Table 4:** Maximum errors (milli-arcseconds) in RA and Dec for the astrometric reference stars.
Epoch	RA	Dec
Feb.-Apr. 1997	12.0	4.2
January 1999	4.4	4.3
January 2000	32	34
December 2000	4.1	7.0
Dec. 2002 Jan. 2003	5.2	3.2

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