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Table 3

Mean relative noise in an exposure due to slit- and diffraction losses.

Relative noise [10–5]
Resolution Band I Band II Band III
R100 2.2 (over 0.6–5 µm)
R1000 1.7 2.0 2.6
R2700 1.6 1.9 2.3

Notes. Calculated for a point source in S1600A1 observed in the different bands, assuming a telescope random jitter of 5 mas.

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