of 2016, 128 tiles operated as one interferometer so-called the MWA Phase I. The MWA Phase II observation is ongoing with additional 128 tiles and different configuration of tiles.

In this work, we use the radio data observed by the MWA Phase I in 2013. The pointing center is toward the EoR0 field centered at (RA,Dec) = (0h, $-$27deg), which was chosen to be sufficiently far from the Galactic Center. The observed frequency range is 167MHz to 197MHz and frequency channel is 40kHz. The observation is operated around zenith for 3 hours and the data consists of 90 observations with 112s time interval for each of snapshots. During the “drift and shift” observation, the direction of antenna pointing changes 5 times, with a change every 30 minutes toward the center of the EoR0. It is worth noting that the beam shape of the MWA varies with the pointing [@2016ApJ...833..102B; @2016ApJ...819....8P].

Although radio frequency interference (RFI) in the Murchison Radioastronomy Observatory is minimal, 1.1 % of data are polluted [@2015PASA...32....8O]. Using the AOFlagger [@2010MNRAS.405..155O], the data including the RFI are flagged and removed from each snapshot. For calibrating the data, we use the Real Time System (RTS, [@Mitchell2008; @Ord2010]), which is 