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Table 1

Repartition of the 2946 HARPS observations.

Periods Nobs Nnight Δtspan SN Average
(yr) (day) (3860 Å) epoch
2003–2004 255 53 127 962 2004.025
2004–2007 42 14 651 390 2006.235
2007–2008 198 12 108 492 2008.203
2008–2009 417 12 196 909 2009.070
2009–2010 54 1 1 278 2009.847
2010–2011 207 4 159 467 2011.081
2013–2014 453 19 250 799 2013.929
2014–2015 60 4 4 493 2015.091
2015–2016 190 4 162 591 2016.063
2016–2017 1080 11 109 639 2017.041

Notes. The signal-to-noise ratio is calculated next to the main Fe I line between 3859.30 and 3859.70 Å.

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