IRTF Data Archive Program Information

# # Program information file # PROGRAM_ID 2022A032 PROGRAM_TITLE NIR spectroscopy of the Polana family: Exploring the small members PROGRAM_INV1 Joshua Emery PROGRAM_INV2 Devon Burr PROGRAM_INV3 Lucas McClure PROGRAM_INV4 Julia de Leon PROGRAM_INV5 Cristina Thomas PROGRAM_SCICAT main-belt / Trojan asteroids PROGRAM_ABSTRACT_BEG We propose near-infrared [NIR; 0.7 -- 2.5 micron] spectral observations of 25 members of the Polana collisional family. The goal is to compare the spectra to those of Bennu and Ryugu as a test of the hypothesis that these two NEAs, targets of sample return missions, originated in the Polana family. The project focuses particularly on D < 5 km members of the family for direct comparisons to the small NEAs, and some larger family members are included as well to investigate size-dependent spectral effects among the family and to characterize spectral variability within the family. PROGRAM_ABSTRACT_END