References Supporting On‐Line Material for Temporal and Spatial Variability of Lunar Hydration as Observed by the Deep Impact Spacecraft

• Main Authors: Jessica M. Sunshine, Tony L. Farnham, Lori M. Feaga, Olivier Groussin, Frédéric Merlin, Ralph E. Milliken, Michael F. A’hearn, Table S
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: North Pole
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.588.8779; http://resourcecentre.daiict.ac.in/eresources/iresources/science_files/deep_impact_water-1.pdf

The Deep Impact HRI‐IR spectrometer (S1) is a double‐prism design providing spectra from 1.05 to 4.5 µm with variable resolving power ranging from>700 at 1.05 µm, down to 200 at 2.5 µm, and increasing to 350 at 4.5 µm. Although this design was driven by considerations relevant to comets, it provides an ideal instrument for measuring the hydration features in the 3‐µm region on solid surfaces (e.g., S2). Observations As part of on‐going calibration efforts, the Deep Impact spacecraft observed the Moon on three occasions. A small area along the equator was imaged as part of a calibration in December 2007. The Moon was also observed over the north pole on both