CALET Ultra-Heavy Cosmic-Ray Analysis

The Calorimetric Electron Telescope (CALET), launched to the ISS in August 2015, utilizes its main calorimeter charge detector to measure CR nuclei from $_{1}$H to $_{40}$Zr. In order to maximize the acceptance of the rare ultra-heavy (UH) CR above $_{30}$Zn, a special high duty cycle ($\sim90\%$) UH trigger is used that does not require passage through the 27 radiation length deep total absorption calorimeter. This provides a $\sim6\times$ increase in geometry factor, although reduced by ISS obstructions, allowing CALET to collect in 5 years a UHCR data set with statistics comparable to those from the first flight of the balloon-borne SuperTIGER instrument but without the need for atmospheric corrections. Previous CALET UHCR analyses using time and position corrections based on $_{26}$Fe and a geomagnetic vertical cutoff rigidity selection have shown abundances of even nuclei in agreement with SuperTIGER. To further improve resolution and maximize statistics a trajectory dependent geomagnetic rigidity selection is employed here as well as a novel independent analysis with L-shells. We present new results from the extended analysis of the UH spectra measured by CALET.