Table 1
Log of the NACO observations. 
are the seeing
measurements in V from the Differential Image Motion Monitor (DIMM)
station, while 
are interpolated
to our wavelength.
| Date | UTC (start-end) | φ | Filter | Name |
|
|
AM | Nbr | 
(cm) |
(ms) |
|
|
|
|||||||||||
| 2009-01-07 | 00:30:41–00:31:56 | – | NB_2.17 | HD 9362 | 0.72″ | 0.55″ | 1.15 | 1 | 9.2 | 3.1 | |
| 2009-01-07 | 00:35:33–00:36:47 | – | NB_1.64 | HD 9362 | 0.77″ | 0.62″ | 1.15 | 1 | 9.0 | 2.9 | |
| 2009-01-07 | 00:51:16–00:54:16 | – | NB_2.17 | Achernar | 0.84″ | 0.64″ | 1.25 | 1 | 9.1 | 2.3 | |
| 2009-01-07 | 01:01:30–01:04:28 | – | NB_1.64 | Achernar | 0.83″ | 0.63″ | 1.27 | 1 | 9.1 | 2.3 | |
| 2009-01-07 | 04:47:17–05:00:46 | 0.035 | IB_2.18 | RS Pup | 0.71 ± 0.05″ | 0.54 ± 0.04″ | 1.03 | 10 | 13.6 ± 0.4 | 3.6 ± 0.2 | |
| 2009-01-07 | 05:01:16–05:13:17 | 0.035 | NB_1.64 | RS Pup | 0.68 ± 0.04″ | 0.54 ± 0.03″ | 1.03 | 10 | 13.0 ± 0.1 | 3.4 ± 0.1 | |
| 2009-01-07 | 05:21:03–05:26:27 | – | IB_2.18 | HD 74417 | 0.55 ± 0.01″ | 0.42 ± 0.01″ | 1.05 | 4 | 19.3 ± 0.8 | 5.1 ± 0.4 | |
| 2009-01-07 | 05:26:57–05:31:43 | – | NB_1.64 | HD 74417 | 0.54 ± 0.01″ | 0.43 ± 0.01″ | 1.04 | 4 | 20.3 ± 0.1 | 5.1 ± 0.1 | |
Notes. The uncertainties denote the standard deviations over the number of cubes. The start-end UTC indicated denotes the time when the first and the last cube was recorded. The phase φ of the Cepheid was computed using (P,T0) from Kervella et al. (2008). AM denotes the airmass, while Nbr is the number of cubes recorded. r0 and t0 are the Fried parameter and the coherence time given by the AO real time calculator.
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