Analysis of astrometric catalogues with vector spherical harmonics

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Table 4

Amplitude (power^1/2) and significance level based on (87) for the positional differences between FK5 and Hipparcos expanded on the VSH.

Degree		Z		Z	Rem. (power)^1/2
	mas		mas		mas

0					474.5
1	85.8	10.18	192.8	19.90	425.0
2	96.6	11.48	139.5	15.94	389.6
3	53.6	6.01	52.8	5.89	382.3
4	65.6	7.44	66.2	7.52	370.8
5	96.8	11.41	62.2	6.72	352.5
6	65.2	6.95	82.2	9.36	336.5
7	68.3	7.18	42.2	3.00	326.7
8	45.0	3.18	57.1	5.22	318.6
9	31.1	0.28	41.4	2.25	314.3
10	34.4	0.63	50.6	3.63	308.3

Notes. The last column gives the power in the remaining signal after the VSH model up to degree l has been removed. The first line with l = 0 gives the square root of the power of the data as defined by (73), (74).

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