Visible and near-infrared observations of asteroid 2012 DA14 during its closest approach of February 15, 2013

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Volume 555 (July 2013)

A&A, 555 (2013) L2

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Table 1

Observational details of the color photometry and spectroscopy data.

Photometry								Spectroscopy

Filter	λ_c (μm)	UT	Exp. (secs)	Airm.	Δ (AU)	α (°)	Magnitude	UT	Exp. (secs)	Airm.	Δ (AU)	α (°)

OSIRIS-GTC								CAFOS-CAHA

g ′	0.48	01:08	1	1.86	0.00093	73.09	12.22 ± 0.02	00:40	60	1.45	0.00085	72.00
		05:18	4 × 5	1.90	0.00156	77.68	14.21 ± 0.03	00:44	60	1.45	0.00087	72.17
r ′	0.64	01:07	1	1.86	0.00092	73.06	11.50 ± 0.02	00:47	60	1.45	0.00088	72.29
		05:20	4 × 1	1.90	0.00157	77.70	13.59 ± 0.03	00:50	60	1.45	0.00088	72.42
i ′	0.77	01:08	1	1.86	0.00093	73.09	11.32 ± 0.03	02:37	120	1.49	0.00115	75.51
		05:22	4 × 1	1.90	0.00157	77.71	13.44 ± 0.03	02:41	120	1.49	0.00116	75.59
z ′	0.96	01:09	1	1.86	0.00093	73.13	11.22 ± 0.03
		05:25	4 × 3	1.90	0.00158	77.74	13.37 ± 0.02

NICS-TNG								OSIRIS-GTC

1mic	1.02	05:32	10 × 10	1.90	0.00160	77.79	12.69 ± 0.04	05:30	90	1.90	0.00159	77.78
J	1.27	05:37	10 × 10	1.90	0.00161	77.83	12.47 ± 0.06
H	1.60	05:42	10 × 10	1.90	0.00162	77.87	12.25 ± 0.06
K	2.2	05:47	10 × 10	1.90	0.00163	77.91	12.29 ± 0.08

Notes.All data were obtained with a distance to the Sun r = 0.988 AU. The UT corresponds to the middle exposure time and in all cases refers to February 16.

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