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Fig. 7

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Left panel: the 68% positional errors vs. the F band count rates, the solid line indicates the case with null statistical uncertainty (σstat = 0). Right panel: ratio between the 90% positional error and the 68% positional error vs. the F band count rates, the solid line indicates the case with null statistical uncertainty (σstat = 0).

This figure is made of several images, please see below:

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