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I was going through the paper of methanol masers and it says that for a strong maser the geometrical dilution factor of HII emission should have low values. What is the meaning geometrical dilution factor? Can you please explain?

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Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in satellite navigation and geomatics engineering to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision.

So a simple answer is that it's effect of navigation satellite geometry for precisely measuring your position. Is this really a physics question?

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  • $\begingroup$ Can you please add the source for that quotation? :) $\endgroup$ – Sanya Aug 22 '16 at 12:55

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