Time-series photometry of Earth flyby asteroid 2012 DA14

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Table 1

Parameters of the best-fit model for the lightcurve of 2012 DA₁₄ around its closest approach.

Phase	Slope	H _R ^a	Amplitude^b	χ ²
function	parameter	(mag)	(mag)

Linear		25.02^c	1.00 ± 0.04	12.6
H-G		24.78	1.02 ± 0.02	12.2
H-G₁₂		24.64	0.90 ± 0.05	18.3

Notes.

^(a)

Absolute magnitude in the R-band.

^(b)

Peak-to-peak amplitude of the rotational lightcurve.

^(c)

This value has been overestimated because the non-linear brightness increase at small phase angles was ignored.

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