The nucleus of Comet 67P/Churyumov-Gerasimenko - A new shape model and thermophysical analysis

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Volume 548 (December 2012)

A&A, 548 (2012) A12

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Table 1

Observational geometry of all data sets used in this study.

UT date	Observing	Filter(s)/	R _h	Δ	α	References	Aspect angle
	facility	wavelength	[AU]	[AU]	[degrees]		[degrees]

Optical data
11/03/03	HST	V,R	2.503	1.522	4.70	L06	100
26/02/04	NTT	B,V,R	4.481	3.959	11.47	This work^*	–
15/04/04	VLT	R	4.670	3.679	2.13	T08	70
16/06/04	VLT	R	4.889	4.296	10.33	T08	73
10/05/05	NTT	V,R,I ^,	5.599	4.592	0.87	This work	61
12/05/05	NTT	V,R,I ^*	5.601	4.592	0.47	This work	61
14/05/05	NTT	V,R,I ^,	5.603	4.593	0.10	This work	61
26/05/06	VLT	R	5.620	4.614	1.32	T08	55
30/05/06	VLT	R	5.614	4.602	0.57	T08	55
31/05/06	VLT	R	5.613	4.601	0.53	T08	55
18/07/06	VLT	R	5.511	5.268	10.46	T08^*	–
19/07/06	VLT	R	5.509	5.283	10.49	T08^*	–
23/07/06	VLT	R	5.503	5.341	10.57	T08^*	–
24/07/06	VLT	R	5.501	5.355	10.58	T08^*	–
17/07/07	VLT	R	4.635	3.717	6.00	T08	53
17/07/07	NTT	V,R	4.635	3.717	6.00	This work	53
20/07/07	NTT	R ^,	4.624	3.729	6.64	This work	53
14/09/07	NTT	V,R,I ^,	4.398	4.247	13.22	This work^*	–
08/08/07	VLT	R	4.549	3.854	10.11	S12^*	–
11/10/07	VLT	R	4.279	4.546	12.52	S12^*	–
Thermal-IR data
25/02/04	SST	24 μm	4.477	4.041^†	12.10^‡	L08^*	–
17/05/07	SST	8 μm	4.851	4.401^†	11.20^‡	K09^*	–
18/05/07	SST	24 μm	4.848	4.382^†	11.13^‡	K09^*	–

Notes. Aspect angle is given for the rotation pole orientation determined in Sect. 3. Reference Key: L06 – Lamy et al. (2006), T08 – Tubiana (2008), S12 – Snodgrass et al. (in prep.), L08 – Lamy et al. (2008), K09 – Kelley et al. (2009).

^(*)

These data sets were used in the phase-darkening curve fitting and ATPM modelling only. All other data sets were incorporated into our shape and spin state model.

^(†)

Comet-spacecraft distance.

^(‡)

Spacecraft–comet–Sun angle.

^(*,*)

While colour data was taken on these runs, we present just the R-filter data here.

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