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| • | Requirements
need to be science-driven |
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| • | (rough estimates
-- to be used as ‘talking points’ only) |
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| • | Absolute flux
scale |
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| – | ~5% |
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| • | Relative flux vs
frequency |
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| – | ~1% for nearby
frequencies |
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| – | ~3% for
frequencies separated by an octave |
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| • | Absolute
locations |
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| – | ~1 arcsecond at
20 GHz |
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| – | eases to ~1
arcmin at 100 MHz |
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