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Table 1
Log of the PIONIER observations (four simultaneous telescopes, except in 2013 when there were 3 telescopes).
| Date | Nb obs. | Nb λ | Config. | Epoch |
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| 2011 Aug. 06 | 4 | 3 | A1-G1-K0-I1 | 2011 |
| 2011 Sep. 22 | 10 | 7 | A1-G1-K0-I1 | 2011 |
| 2011 Sep. 23 | 9 | 7 | A1-G1-K0-I1 | 2011 |
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| 2012 Sep. 16 | 9 | 3 | A1-G1-K0-I1 | 2012 |
| 2012 Sep. 17 | 3 | 3 | A1-G1-K0-I1 | 2012 |
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| 2013 Sep. 02 | 2 | 3 | G1-K0-J3 | 2013 |
| 2013 Sep. 04 | 1 | 3 | G1-K0-J3 | 2013 |
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| 2014 Sep. 21 | 5 | 3 | A1-G1-K0-J3 | 2014 |
Notes. We defined 4 datasets relative to different epochs: August/September 2011, September 2012, September 2013, and September 2014.
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