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Table 4

Averages and error bars (sigma) characterizing the V − R and R − i color indices of each component for the 2008 and 2009 seasons.

2008 Technique A B C D

V − R difference imaging 0.47 ± 0.03 0.47 ± 0.03 0.48 ± 0.03 0.46 ± 0.03
V − R PSF fitting 0.48 ± 0.02 0.50 ± 0.02 0.49 ± 0.03 0.46 ± 0.03
R − i difference imaging 0.08 ± 0.02 0.13 ± 0.03 0.13 ± 0.03 0.10 ± 0.04
R − i PSF fitting 0.09 ± 0.03 0.11 ± 0.04 0.13 ± 0.04 0.12 ± 0.03

2009 Technique A B C D

V − R difference imaging 0.56 ± 0.02 0.51 ± 0.03 0.53 ± 0.03 0.52 ± 0.03
V − R PSF fitting 0.53 ± 0.02 0.51 ± 0.03 0.52 ± 0.03 0.50 ± 0.03
R − i difference imaging 0.16 ± 0.02 0.17 ± 0.03 0.17 ± 0.03 0.14 ± 0.03
R − i PSF fitting 0.19 ± 0.02 0.19 ± 0.04 0.18 ± 0.02 0.16 ± 0.04

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