$1 \Delta t$ ($\sim 340 \mu$s). These results show that the phase alignment of the MAG and SCM is accurate to within a small phase error in the frequencies surrounding the cross-over point.

Analysis of the relative phase between the SCM and MAG observations verifies timing accuracy to within a single sample period. Additionally, quantification of the relative gain between the instruments allows for the empirical matching of the SCM signal to MAG levels such that a smooth transition over the sensor cross-over range is obtained. Establishing L3 calibrations for the MAG and SCM provide time-synchronized and gain matched signals such that the direct sum of the signals, with gains weighted by $\alpha_{MAG}$ and $\alpha_{SCM}$, results in an optimal signal-to-noise merged SCaM data product .

Merging DFB Burst Data
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![(a) Burst waveform from FIELDS DFB on 2018-11-05/06:33:58 (blue) with simultaneous SCaM (red) waveform data. (b) Power spectral density from burst interval on 2018-11-05/06:33:58 dashed lines show the corresponding merging coefficients for the DFB burst (blue) and SCaM (red). (c) Merged DFB and SCaM waveform. (d) Merged power spectral density. (e) Waveform data from DFB burst on 2018-11-05/06:33:58 with SCaM data. (f) Power spectral density from 2018-11-05/06:33:58 interval, spectral flattening 