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Table 2
Summary of the NACO and VISIR observations.
Date | Instrument | Mode | Length | Seeing | Transparency | |||||
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17/06 + 01/08/2010 | NACO | SM | 4 × 1 h | 0.8″ | clear | |||||
17−18/07/2011 | NACO | VM | 1 n | 0.65″–0.8″ | clear | |||||
18−19/07/2011a | NACO | VM | 0.5 n | 0.55″–0.65″ | clear-thin | |||||
20/07/2011b | VISIR | VM | 0.5 n | 1.0″–1.5″ | thin-thick |
Notes. The service mode (SM) or visitor mode (VM) is indicated in Col. 3. The length of the observations is given in hours or in nights in Col. 4. Columns 5 and 6 provide the weather condition: R-band image quality and sky transparency.
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