Reconstruction of asteroid spin states from Gaia DR3 photometry

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Table 1

Asteroids whose rotation period derived from DR3 was different from that in the LCDB.

	Asteroid	P_Gaia	P_LCDB	N	Method	Comment on P_Gaia
		(h)	(h)
197	Arete	3.15950	6.6084	33	E	Incorrect
219	Thusnelda	4.44300	59.74	24	E	Incorrect
712	Boliviana	23.463	11.743	54	E	Agrees with Pál et al. (2020)
954	Li	14.4099	7.207	48	E	Period around 14 h reported also at Behrend’s web page (1)
1444	Pannonia	6.9540	10.756	48	CE	The same as in Ďurech et al. (2019); P_LCDB is from Bembrick et al. (2002), their folded light curve has three maxima per rotation, which is unlikely
1786	Raahe	30.173	18.72	33	CE	The same as in Ďurech et al. (2019) and Ďurech & Hanuš (2018), also agrees with Behrend’s web page (1)
2277	Moreau	17.7253	5.397	59	C	Likely incorrect; P_LCDB reported by Pravec is reliable
2760	Kacha	26.524	13.	43	C	Warner & Stephens (2021) give the same period
3422	Reid	3.21826	2.91	64	CE	Agrees with Ďurech et al. (2019) and Pál et al. (2020)
3507	Vilas	4.75499	3.959	25	C	Agrees with Ďurech et al. (2020) and Erasmus et al. (2020)
3728	IRAS	7.0887	8.323	65	C	Agrees with Pál et al. (2020)
3974	Verveer	13.2437	8.51	22	E	Agrees with Ďurech et al. (2020)
4266	Waltari	7.4622	11.2	40	C	P_LCDB reported by Lecrone et al. (2004) might be incorrect – the folded light curve is not smooth
5436	Eumelos	21.2689	38.41	32	CE	Agrees with Szabó et al. (2017), Ryan et al. (2017), and Ďurech et al. (2019)
11087	Yamasakimakoto	6.27957	4.537	27	C	Agrees with Pál et al. (2020)
19562	1999 JM81	9.0249	33.53	27	E	Agrees with Ferrero (2021); incorrect value in the LCDB by mistake
26858	Misterrogers	12.1225	8.065	39	C	Period commensurability with 24 h makes it difficult to distinguish between 6 or 8 h periods, 12 h period possible according to Dose (2021)
33750	Davehiggins	10.5623	8.827	48	CE	Agrees with the period reported by Sergison listed in the LCDB
40203	1998 SP27	2.42776	5.448	23	C	Probably incorrect
43331	2000 PS6	2.09540	7.338	33	E	Incorrect

Notes. The table lists for each asteroid the period P_Gaia we derived from Gaia DR3 data, the period P_LCDB reported in the Lightcurve Database of Warner et al. (2009), the number of points N in DR3, the method used for computing periodograms: C – convex shape models, E – ellipsoids, CE – both methods provided the same period. The last column gives our conclusion about the discrepancy between the periods.

References. (1) https://obswww.unige.ch/~behrend/page_cou.html

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