Mini-LENS--- Operation of a Prototype Low-Energy Solar Neutrino Spectrometer Underground

The Low-Energy Neutrino Spectroscopy (LENS) Collaboration aims to precisely measure the entire low energy spectrum of solar neutrinos, including the pp, pep, $^{7}$Be decay, and CNO reactions in the sun via real time CC based neutrino capture in $^{115}$In. As a prototype for LENS, we are building 410L mini-LENS, which will demonstrate the detector performance and optimize scaling up to the $\sim $200 ton final LENS detector. The mini-LENS detector design, the planned mini-LENS operational phases, and the continued R{\&}D efforts will be discussed.