Fig. 12.

The galactic soft X-ray background in the $\frac{1}{4}$ keV (R12) energy band from ROSAT. This band includes with the bandpass of LEXI. Flux is presented in ecliptic coordinates ($\lambda$, $\beta$) where the horizontal axis is the ecliptic plane and $\lambda$=0^∘ is at the center. Flux is presented in “Snowdens” or 10⁻⁶ counts s⁻¹ arcmin⁻². The squares represent the look direction of the science target from LEXI on the lunar surface with one day cadence for the planned operations period