performed to the empirically determined function.[]{data-label="merging_resp"}](fig1)

![Magnetic field offsets for FIELDS/MAGo $x$,$y$,$ and z$ axes (panels a, b, and c) over first two encounters of PSP (respectively offset by 219.1, 355.1, -667.4 sensor counts for demonstrative purposes). Data points (+) correspond to estimates from Alfvénic rotations of the solar wind; a seven point median filter used in processing the FIELDS data (orange). Offsets determined from spacecraft rotations are shown in red (sun pointed rolls around the spacecraft $z$-axis) and blue (conical rolls performed off sensor $z$-axis). The blue + corresponds to the MAGo $x$ offset determined from Alfvenic at the time of the conical roles.[]{data-label="fig:rolls"}](fig2.jpg){width="4.5in"}

The PSP/FIELDS search-coil magnetometer was designed at Laboratoire de Physique et Chimie de l’Environnement et de l’Espace (LPC2E) in Orléans, France, and is nearly identical to the search-coils which have been manufactured and delivered for the Solar Orbiter and TARANIS missions [@SeranFergeau2005; @Maksimovic2019]. The SCM, consisting of three mutually orthogonal inductive coils mounted on the end of the spacecraft magnetometer boom, is tailored to study the magnetic fields of the inner heliosphere [@Bale2016] from 10-20 kHz. Additionally, one of the coils (sensor $x$-axis) has a secondary winding with bandwidth of 10 kHz-1 MHz.

The survey 