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We present here a combined analysis of four high spectral resolutionobservations of the Diffuse X-ray Background (DXRB), made using the Universityof Wisconsin-Madison/Goddard Space Flight Center X-ray Quantum Calorimeter(XQC) sounding rocket payload. The observed spectra support the existence of a$\sim0.1~$keV Local Hot Bubble and a $\sim0.2~$keV Hot Halo, with discrepanciesbetween repeated observations compatible with expected contributions oftime-variable emission from Solar Wind Charge Exchange (SWCX). An additionalcomponent of $\sim0.9~$keV emission observed only at low galactic latitudes canbe consistently explained by unresolved dM stars.

A High Spectral Resolution Study of the Soft X-ray Background with the X-ray Quantum Calorimeter