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Table 1

Log of the observations.

HD 34282 R CrA HD 104237 β Pictoris
Obs. date 2016-11-07 2017-05-19 2017-05-16 2013-02-01
Wind Speed(a) [ms−1] 2.15–5.18 (4.00) 5.03–7.80 (6.09) 12.98–17.08 (15.43) 0.53–4.28 (2.28)
Coherence time (a) [ms] 4.8–17.3 (10.7) 2.9–5.8 (4.2) 1.8–3.7 (2.3) 1.03–2.43 (1.76)
Seeing (b) [″] 0.69–1.29 (0.87) 0.67–0.92 (0.77) 0.97–1.43 (1.21) 0.84–1.57 (1.13)
Field rotation [deg] 118.26 35.86 45.18 82.97
DIT (c) [s] 0.25 0.35 0.35 0.2
NDIT 100 100 100 200
Total exposure time [min] ~135 ~70 ~152 ~114
Total number of frames 32 500 12 100 26 100 34 277
Program ID 198.C-0612(A) 199.C-0065(A) 199.C-0065(A2) 60.A-9800(J)

Notes. The minimum and maximum value registered are tabulated for the wind speed, coherence time, and seeing, while the median registered value is in parentheses. (a)DIMM measured values during the observations. (b)Seeing measured on the image analysis detector (at the pointing location).(c)DIT = detector integration time.

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