urn:nasa:pds:nh_pepssi:kem1cruise_raw 1.0 1.19.0.0 Product_Collection McNutt, R. Jr. Sharkey, Benjamin; Gicquel, Adeline; Gobat, Caden; Redfern, Jillian 2026 10.26007/pd9m-8160 This data set contains Raw data taken by the New Horizons Pluto Energetic Particle Spectrometer Science Investigation instrument during the CRUISE TO FIRST KBO ENCOUNTER mission phase. These data were migrated from the PDS3 dataset: NH-X-PEPSSI-2-KEMCRUISE1-V2.0. Some data from PLUTO ENCOUNTER has been included. This is due to data being replayed after the PLUTO ENCOUNTER PDS Deliveries. PEPSSI (Pluto Energetic Particles Spectrometer Science Investigation) is a particle telescope and a time-of-flight (TOF) spectrometer that measures ions and electrons over a broad range of energies and angles. Particle composition and energy spectra are measured for H to Fe from ~ 30 keV to ~1 MeV (but not all species are uniquely separated) and for electrons from ~30 keV to 700 keV. PEPSSI comprises a time-of-flight (TOF) section and a solid-state detector (SSD) array that measures particle energy. The combination of measured energy and TOF provides unique particle identification by mass and particle energy depending on the range: for protons from ~30 keV to ~1 MeV; for heavy (CNO) ions from ~80 keV to ~1 MeV. Lower-energy (>3 keV) ion fluxes are measured by TOF only, but without the SSD signal, providing velocity spectra at these energies as well. Due to storage and bandwidth limitations, all event data cannot be stored or telemetered to the ground. Instead, a round-robin algorithm is used to save Energy, TOF, and timing data for select events. The common data products contain these event and summary measurements, accumulated over fixed periods of 86,400 seconds, with each period in a single file comprising multiple binary tables. The documentation provided with this data set describes the data format. PEPSSI was powered on for most of the time frame during this mission phase, taking data in its low rate mode. Other than normal operations one EEPROM check was performed. Labels were redesigned during migration using the .FIT header and PDS3 .LBL files, but the data files are unchanged from their PDS3 version. 2025-01-28 1.0 Created during PDS4 migration by PDS-SBN (B. Sharkey) 2016-10-22T23:00:00.000Z 2018-08-13T00:08:02.009Z Science Calibrated Particles Ions Energetic New Horizons Kuiper Belt Extended Mission Mission urn:nasa:pds:context:investigation:mission.new_horizons_kem1 collection_to_investigation New Horizons Host urn:nasa:pds:context:instrument_host:spacecraft.nh is_instrument_host Pluto Energetic Particle Spectrometer Science Investigation Instrument urn:nasa:pds:context:instrument:nh.pepssi is_instrument Solar Wind Plasma Stream urn:nasa:pds:context:target:plasma_stream.solar_wind data_to_target urn:nasa:pds:context:resource:resource.nh_pepssi_colxn_kem1cruise_raw_online has_resource urn:nasa:pds:nh_pepssi:kem1cruise_raw:overview::1.0 collection_to_document PEPSSI Overview Document urn:nasa:pds:nh_documents:pepssi collection_to_document PEPSSI Document Collection urn:nasa:pds:nh_documents:mission collection_to_document New Horizon Mission Document Collection urn:nasa:pds:nh_pepssi:kem1cruise_cal collection_to_data PEPSSI KEM1 Cruise Calibrated Data Collection urn:nasa:pds:nh_pepssi:calibration_files collection_to_calibration PEPSSI Calibration Files Collection Data collection_kem1cruise_raw.csv 0 PDS DSV 1 613 Carriage-Return Line-Feed Comma 2 0 Member Status 1 ASCII_String 1 LIDVID_LID 2 ASCII_LIDVID_LID 255 inventory_has_member_product