CALET Ultra Heavy Cosmic Ray Analysis Status

The CALorimetric Electron Telescope (CALET) on the International Space Station (ISS) was launched August 19, 2015 and continues to return excellent data. CALET measures the fluxes of high-energy electrons, nuclei and gamma rays with its main calorimeter (CAL). The energy spectra of the more abundant cosmic-ray (CR) nuclei through $_{26}$Fe are measured with the CAL, which also has the dynamic range to measure the abundances of CR nuclei from $_{1}$H to $_{40}$Zr. CALET has a ultra-heavy cosmic-ray (UHCR) trigger that provides an expanded geometric acceptance such that in its approved 5 year mission on the ISS CALET will collect a UHCR data set with statistics comparable to that achieved with the first flight of the SuperTIGER balloon-borne instrument in a similar energy range. Analysis of the CALET UHCR data is ongoing, but preliminary results show reasonable agreement with SuperTIGER relative abundances of even charge UHCR nuclei. The CALET space-based measurements also complement the lower statistics and lower energy space-based UHCR measurements by ACE-CRIS.