Optical observations of NEA 3200 Phaethon (1983 TB) during the 2017 apparition

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Table 2

Sidereal rotational period and pole orientation of Phaethon.

λ₁	β₁	λ₂	β₂	P_sid	References
(deg)	(deg)	(deg)	(deg)	(h)
308 ± 10	−52 ± 10			3.603957	This work (LI)
322 ± 10	−40 ± 10			3.603956	This work (SAGE)
319 ± 5	−39 ± 5	84 ± 5	−39 ± 5	3.603958 ± 0.000002	Hanuš et al. (2016)
		85 ± 13	−20 ± 10	3.6032 ± 0.0008	Ansdell et al. (2014)
276	−15	97	−11	3.59060	Krugly et al. (2002)

Notes. The ecliptic longitude (λ) and latitude (β) of the asteroid pole orientation, the sidereal rotational period (P_sid), and references. Our solutions are derived from lightcurve inversion (LI) method and shaping asteroid models using the genetic evolution (SAGE) algorithm, respectively.

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