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Table 1

VLTI/AMBER and VLTI/MIDI observing logs.

Projected baseline
Number Date Obs. Time Stations Length PA Calibrators Ang. Diam. of the Calibrators
(UT) [m] [degrees] (used in the triplet) (mas)

AMBER (ATs)
B1 2007-12-29 06:40 G1-D0 62.3 –36.4 HD 52436, HD 52938, HD 96538 1.24, 0.90, 0.92
B2 D0-H0 60.6 74.2
B3 G1-H0 70.1 17.7
B4 2008-01-02 07:08 K0-G1 90.3 35.2 HD 34137, HD 44621, HD 52938 0.83, 0.92, 0.90
B5 G1-A0 70.3 –51.9
B6 K0-A0 111.6 74.2
B7 2008-01-06 07:36 G1-A0 62.3 –44.5 HD 52938 0.90
B8 2008-01-09 05:26 H0-G0 31.4 73.8 HD 52938, HD 54810 0.90, 1.49
B9 G0-E0 15.7 73.7
B10 2008-01-09 06:01 H0-G0 30.2 74.2 HD 52938, HD 54810 0.90, 1.49
B11 H0-E0 45.3 74.2
B12 2008-01-09 06:43 H0-G0 27.9 74.2 HD 52938, HD 54810 0.90, 1.49
B13 G0-E0 14.0 74.2
B14 H0-E0 41.9 74.2
B15 2008-01-09 03:08 H0-G0 29.7 68.3 HD 52938 0.90
B16 G0-E0 14.9 68.3
B17 H0-E0 44.6 68.3

MIDI (ATs)
B1 2007-12-09 03:19 G1-H0 68.9 –12.3 HD 48915 5.85
B2 2007-12-09 03:40 G1-H0 68.6 –10.2 HD 48915 5.85
B3 2007-12-12 05:09 G1-D0 71.6 130.0 HD 48915 5.85
B4 2007-12-12 06:00 G1-H0 68.1 6.8 HD 48915 5.85
B5 2007-12-13 03:10 G1-D0 66.6 129.9 HD 48915, HD 29139 5.85, 19.90
B6 2007-12-26 07:45 G1-D0 58.1 151.3 HD 48915 5.85
B7 2008-11-09 05:48 E0-G0 12.3 60.7 HD 48915 5.85
B8 2008-11-10 05:47 E0-H0 37.1 60.9 HD 48915 5.85
B9 2008-12-27 06:35 E0-G0 15.5 74.0 HD 48915 5.85
B10 2008-12-28 01:39 E0-G0 10.0 50.8 HD 48915 5.85
B11 2008-12-28 02:36 E0-H0 36.9 60.7 HD 48915 5.85
B12 2008-12-30 01:35 G0-H0 20.3 51.7 HD 48915 5.85
B13 2009-01-21 06:08 G0-H0 27.1 74.0 HD 48915 5.85
B14 2009-03-08 01:22 E0-H0 47.7 73.4 HD 48915 5.85

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