The Imaging Vector Magnetograph at Haleakal - II. Reconstruction of stokesspectra

The Imaging Vector Magnetograph ('IVM') at Mees Solar Observatory, Haleakal a, Maui, Hawai`i, is designed to measure the magnetic field vector over an entire solar active region on the Sun. The first step in that process is to correct the raw data for all known systematic effects introduced by the in strument and Earth's atmosphere. We define a functional model of the atmosp here/instrument system and measure the corrections for the degradation intr oduced by each component of the model. We demonstrate the feasibility of th is method and assess the accuracy of the IVM spectra with a direct comparis on of the resulting Stokes spectra to a well-described spectropolarimeter.