The Micro-X sounding rocket payload combines a high-energy-resolution X-ray microcalorimeter with an imaging mirror and will obtain the first imaging X-ray microcalorimeter spectra from an astronomical source. The first flight of Micro-X is slated for 2017 and will investigate the plasma conditions (such as temperature, electron density and ionization) and the velocity structure of the Bright Eastern Knot of the Puppis A Supernova remnant (SNR). The obtained high-resolution X-ray
spectra will help to ascertain the temperature and ionization state of the X-ray emitting gas in Puppis A. Analysis of the data will allow the detection of presence of supernova ejecta in this remnant. Additionally turbulent flows and bulk motions of the plasma will be measured. The Principal Investigator is Dr. Figueroa/Massachussetts Insititute of Technology.