Notes. The number of galaxies refers to the northern galactic hemisphere only for both surveys. The survey area was taken from the value for the northern hemisphere quoted in Tempel et al. (2014b) (MGS) and from Table 2 of Reid et al. (2016, effective area, NGC, CMASS survey). As there is no value for the combined LOWZ+CMASS area for the NGC but only the two separate values for LOWZ and CMASS, we chose the value for the area of CMASS as it is the largest of the two under the consideration that the LOWZ survey has a smaller area within the CMASS area. The coordinates of the centre of the field (RA_fc, Dec_fc) are used in the remaining paper to align the x-axis with the LoS direction when we convert from equatorial into Cartesian coordinates or vice versa.