Using a Ground-Based Coronagraph as an Early Warning System for Solar Energetic Particle Events

St.Cyr et al. (2017) proposed using a ground-based coronagraph as an early warning system for solar energetic particle (SEP) events driven by coronal mass ejection (CME)-generated shocks. That work investigated numerous observations related to a single SEP event produced by a CME on January 1, 2016 recorded by the Mauna Loa Solar Observatory (MLSO) K-Coronagraph (K-Cor) in Hawaii. To better assess the viability of such an early warning system we extend the study to all major SEP and LASCO halo CME events occurring from September 2013 to the present that overlap with coronagraph observations from K-Cor. We report on the percentage of SEP and halo events observed by K-Cor and identified by CME detection code developed by Thompson, et al. (2017). We examine the CME properties observed in the low corona from K-Cor and the outer corona from LASCO and compare these to the associated SEP properties and related activity such as solar flares and radio emission.