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Table 1

List of the MIDI observation epochs for the Circinus galaxy.

Date Baseline BL [m] PA [°] Good Bad

2004-02-12 U3-U2 43 to 43 19 to 21 2 0
2004-06-03 U3-U2 20 to 29 92 to 129 2 0
2005-02-21 U2-U4 87 35 0 1
2005-03-01 U3-U4 49 to 62 44 to 130 6 0
2005-04-18 U2-U4 89 60 1 0
2005-05-26 U2-U3 35 to 43 12 to 69 6 0
2006-05-18 U2-U3 23 to 31 84 to 114 4 0
2008-04-17 U1-U3 75 to 84 42 to 60 0 5
2008-04-18 U2-U4 76 to 89 33 to 156 26 2
2008-04-26 E0-G0 12 to 15 14 to 155 23 2
2009-04-15 U1-U3 54 to 92 8 to 90 17 1
2009-04-27 E0-G0 14 to 16 16 to 113 16 1
H0-G0 24 to 25 138 to 164 3 1
2011-04-14 U1-U2 35 65 1 0
2011-04-17 U3-U4 47 to 62 33 to 124 10 0
2011-04-18 U2-U4 87 to 87 32 to 41 7 1
2011-04-19 U1-U3 86 to 86 35 to 37 2 0
2011-04-20 U2-U4 77 to 81 127 to 150 16 0
2011-05-06 C1-A1 14 to 15 26 to 104 10 1
D0-B2 26 to 27 34 to 38 0 2

totals: 152 17

Notes. The table includes observing date, baseline parameters (telescope combination, range of baseline lengths and position angles) and number of (un)successful measurements. U in the baseline stands for Unit Telescope (UTs); A1 to H0 denote the stations of the Auxiliary Telescopes (ATs). Measurements were considered successful (“good”) if a fringe signal was tracked and sufficient signal was detected (see also Appendix A).

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