New Horizons Linear Etalon Imaging Spectral Array (LEISA) Data Archive Bundle This bundle contains the following collections: New Horizons LEISA data collections, one for each mission phase and processing level (raw and calibrated). In general these will contain images in .FIT format from the LEISA instrument. Reference Files Used in Calibrating Data from the New Horizons LEISA contains a cumulative set of ancillary file maps (gain, wavelength, flat, bad pixels, pointing) used in calibrating the data sets delivered by the LEISA instrument over the course of the New Horizons primary and extended missions. See each collection's overview file for further details. This bundle was created by the Small Bodies Node of the Planetary Data System as part of migration from PDS3 to PDS4. The data collections from the prime mission and KEM1 extended mission found in this bundle were originally migrated from PDS3 datasets produced by the New Horizons SOC. All other extended mission data is produced by the New Horizons SOC using the PDS4 standards.