First Non-LTE Spectro-polarimetric Inversions of DKIST/ViSP data in coordination with Parker Solar Probe

We present novel Non-LTE inversions of solar polarimetric spectra sensitive to chromospheric layers. The spectra were obtained at the DKIST with the Visible Spectro-Polarimeter (ViSP) during a coordinated campaign withthe Parker Solar Probe mission at its perihelion on Jun 2 & 3, 2022. The data, consisting of scans of slit-spectra in the Fe I 630 nm and Ca II 854 nm in all four Stokes parameters has been made publicly available via the DKIST data portal. Spectral inversions of the data yield physical quantities like temperature, line-of-sight velocity, microturbulence, and magnetic field strength and orientation, as a function of continuum optical depth, in each observed pixel and ranging in height from the photosphere to the chromosphere. We will discuss the process to make level-1 (telescope and instrument calibrated) data suitible for inversion and will present the first results from the inversions. The inverted (level 2) data will be made public along with the original spectra. Data is inverted with the Non-LTE code Departure coefficient aided Spectro-polarimetric Inversions with Response functions (DeSIRe). The first impressions of the inverted data show clear velocity and some magnetic sensitivity in chromospheric fibrils, with height resolution that results from the excellent spectral and spatial resolution of the data.