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Table 1

Observation log.

Target Type N img tint (ms) r0 at 550 nm

2011-10-16

Algol AC 10 000 150 ~11.5 cm
Aldebaran C 10 000 50 ~10 cm
Capella 16 000 50 ~11.5 cm

2011-10-17

Aldebaran C 10 000 50 ~16 cm
Capella 11 000 50 ~15 cm

2011-10-19

Algol AC 10 000 200 ~14 cm
Aldebaran C 10 000 100 ~8 cm
Capella 12 000 100 ~13 cm

2012-07-29

α Per C 5000 150 ~14 cm
Algol AC 5000 150 ~15 cm
Capella 5000 150 ~12.5 cm

2012-12-19

Algol AC 6000 200 ~7 cm
α Per C 5000 200 ~8 cm
Capella 5000 200 ~5 cm
α Per C 5000 200 ~7 cm
β Aur C 5000 200 ~8 cm
Capella 5000 200 ~8 cm
β Aur C 5000 200 ~8 cm

2012-12-20

β And C 4000 200 ~8 cm
Algol AC 6000 200 ~8 cm
α Per C 5000 200 ~6 cm
Capella 5000 200 ~7 cm

Notes. The table includes the dates of observation, the type of target (AC stands for astrometric calibrator and C for closure phase calibrator), the number of images acquired with an integration time tint, and an estimate of the r0 parameter (evaluated thanks to the AO system occasionally once or twice during one sequence of observations).

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