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Idea 8: Monitoring of Solar System objects. We can take advantage of all the work already done to implement the twilight observing programs with OSIRIS and NIRC2. Io and Titan are visible most of the second half of the night in May. Neptune is visible during the morning twilight. Condition: No proprietary time for data taken under the current circumstances. → I propose monitoring of Giant Solar System planets too, so we can trace the evolution of their cloud coverage to improve mapping models of brown dwarfs and giant exoplanets.
Idea 9: Creating a MOSFIRE spectral library of the ultracool Y-dwarfs (Teff>400K). Y-dwarfs share temperatures with giant extrasolar planets. These objects are extremely faint for most of the spectrographs currently available (up to J~23-24), but could be done with MOSFIRE integrating a couple of hours.