Asteroid characterization using Gaia Data Release 3 - I. Shapes, spins, and scattering properties

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Table B.2

Convex shape parameters of (16) Psyche

Parameter	Symbol	Estimate
spin period (hours)	P	8.39147 ± 0.00009
spin longitude (degrees)	λ	37.2 ± 0.7
spin latitude (degrees)	β	9.8 ± 3.6
slope parameter^‡ (mag rad⁻¹)	β₀	1.31 ± 0.120
G₁₂ parameter^†	G₁₂	−0.192 ± 0.211
H,G₁₂ absolute magnitude^‡ (mag)	Gaia	6.156 ± 0.156
transformation to H,G^*₁₂ (mag)	$Δ H_{G_{12}^{}}$ $Mathematical equation: $\Delta H_{G^_{12}}$$	−0.228
G₁ parameter^†	G₁	−0.083 ± 0.159
G₂ parameter^†	G₂	0.818 ± 0.217
phase integral^‡	q	0.606 ± 0.102
geometric albedo	p_Gaia	0.108 ± 0.016
Bond albedo	A	0.065 ± 0.015
root mean square fit (mag)	rms	0.012
Akaike Information Criterion	AIC^cxi	−219.3
fit b to a axis ratio	b/a^cxi	0.773
fit c to a axis ratio	c/a^cxi	0.641

Notes. ^†based on maximum LC brightness

^‡based on mean LC brightness

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