Comparison of the Gaia-CRF3 and planetary ephemerides via asteroid observations

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Volume 701 (September 2025)

A&A, 701 (2025) A15

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Table 3

Fitting results of the rotational alignment between the Gaia reference frame and the dynamical ephemerides frame, derived from different solutions.

Sample	ϵ_x	ϵ_y	ϵ_z	ϵ	ω_x	ω_y	ω_z	ω
	mas				mas yr⁻¹
G1315	−6.41	−6.34	−8.51	12.40	−0.20	0.36	0.07	0.42
	(0.10)	(0.10)	(0.11)	–	(0.05)	(0.05)	(0.05)	–
SB343	2.49	−6.18	−8.00	10.41	−1.00	−0.61	−0.38	1.23
	(0.16)	(0.16)	(0.18)	–	(0.08)	(0.08)	(0.09)	–
G1315+	−6.19	−7.13	−6.94	11.72	−0.32	−0.57	−0.34	0.74
INPOP10e	(0.13)	(0.13)	(0.15)	–	(0.06)	(0.06)	(0.07)	–

Notes. The total orientation offset, ϵ, is given by $ϵ = \sqrt{ϵ_{x}^{2} + ϵ_{y}^{2} + ϵ_{z}^{2}}$ $= \sqrt {_x^2 + _y^2 + _z^2}$ , and the total rotation rate, ω, is defined as $ω = \sqrt{ω_{x}^{2} + ω_{y}^{2} + ω_{z}^{2}}$ $\omega = \sqrt {\omega _x^2 + \omega _y^2 + \omega _z^2}$ .

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