constraints. When possible the FIELDS team intends to operate the instruments with a single high data rate (292.969 Sa/s) over the entire perihelion encounter period. To date, the lowest cadence survey rate during the perihelion encounter is 73.24 Sa/s.

The calibration kernel, corresponding to the inverse response of the MAG instrument response is weighted by the appropriate merging gain coefficients, $\alpha_{MAG}$ to construct the contribution from MAGo to the merged time series. This weighted time-series, subsequently undergoes calibration processes associated with orthogonalization and spacecraft field removal used in generation of public un-merged data. The SCM is similarly calibrated using the instrumental response function with gain weighted by the merge coefficients $\alpha_{SCM}$; the gain and gain phase shifts associated with digitization by the FIELDS DFB are additionally corrected for [@Malaspina2016]. Once convolved with calibration kernels, the SCM is rotated into the MAGo coordinate system. The weighted MAG time series is then interpolated onto the SCM time abscissae. Interpolation onto the SCM time tags are used to preserve the high frequency component of the SCM without introducing artifacts associated with interpolation. The time series are directly summed to generate the merged data set with optimal signal to noise ratio. The merged SCaM 