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Table 5.
Broadband seeing errors for different seeing conditions.
Seeing conditions | L (DIT = 111 ms) | M (DIT = 111 ms) | N (DIT*NMOD = 240 ms) | ||||
---|---|---|---|---|---|---|---|
τ0 (ms) | Seeing(″) | Visibility error | Closure phase error | Visibility error | Closure phase error | Visibility error | Closure phase error |
3.2 ± 0.5 | 0.96 ± 0.1 | 0.08 | 0.30° | 0.05 | 0.25° | 0.045 | 1.75° |
6.8 ± 0.5 | 0.74 ± 0.1 | 0.02 | 0.26° | 0.020 | 0.24° | 0.02 | 0.49° |
7.5 ± 0.5 | 0.56 ± 0.1 | 0.02 | 0.16° | 0.015 | 0.15° | 0.015 | 0.29° |
Notes. These low closure-phase errors were obtained with the BCD correction.
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