Fixed Point Method to Analyze Differences between Hipparcos and ICRF2

Table 1

Fixed point iterative process (see explanation in text).

Rio-ICRF2	Rio-Hip	Hip-UCAC4	ICRF2-Zach14
(Starting point)	Rio + →	Hip + →	Zach14 + →
ICRF2 + →	Rio + →	Hip + →	Zach14 + →
	Rio + →	Hip + →	Zach14 + →