#
# Program information file
#
PROGRAM_ID           2023A052
PROGRAM_TITLE        Confirmation of the homogeneity of surface composition of [98943] 2001 CC21
PROGRAM_INV1         Jooyeon Geem
PROGRAM_INV2          
PROGRAM_INV3          
PROGRAM_INV4          
PROGRAM_INV5          
PROGRAM_SCICAT       near-Earth objects
PROGRAM_ABSTRACT_BEG
Asteroid [98943] 2001 CC21 is one of the target candidates for JAXA's Hayabusa II Extended mission. The photometric light curve of this target suggests that the target might be a highly elongated object. However, the underlying assumption is that the surface albedo [mainly determined by surface composition] is uniform during the rotational phase. Unfortunately, it has not been confirmed that the albedo or composition of 2001 CC21's surface is uniform through rotation. Here, we propose to use IRFT/SpeX to investigate the homogeneity of surface composition especially focusing on Ca-Al-rich inclusions, which can affect the surface brightness of the target. To check the spectral rotational variability of the target, we would request 1 hour x 3 consecutive nights of observations between HST 2023 Feb 01 and 2023 Feb 10.
PROGRAM_ABSTRACT_END