PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM LABEL_REVISION_NOTE = " 2014-08-23 SwRI:BTCarcich Updated from comments in PDS peer review on 2014-08-19. 2016-06 SwRI:BTCarcich Updated from comments in PDS peer review in 2016-05 2017-02-15 SwRI:TFinley Updated contact info and comments from PDS peer review 2016-12-05 " OBJECT = TEXT PUBLICATION_DATE = 2017-04-30 NOTE = "The NH REX Pluto encounter Calibrated VERSION 1.0 Data Archive Be sure to read the Required Reading note below before using the data in this archive. " END_OBJECT = TEXT END The NH REX PLUTO Calibrated VERSION 1.0 Data Archive ======================================================================== Table of Contents ================= Introduction Required Reading Volume Format File Formats Volume Contents Whom to Contact for Information Introduction ============ Extensive preparation is necessary to properly understand and interpret the data in this data set. Very little data set-specific detail is provided here; this file is only intended as a brief introduction to the volume structure of the files in this data set. Refer to the Required Reading section below for further guidance. Science data content -------------------- This document is a volume structure overview of the New Horizons (NH) REX PLUTO Calibrated VERSION 1.0 Flight Data Archive. The New Horizons (NH) Radio Science Experiment (REX) instrument measures radio signals and comprises two Elements. The primary investigation uses radio signals from the NASA Deep Space Network (DSN; Ground Element) received by REX (Flight Element) onboard the NH spacecraft; the direction of transmission is exclusively uplink from Earth to REX. The analysis method detects phase perturbations as the signal path moves through the atmosphere or crosses the limb of a target body. Ancillary investigations are radiometry of 4cm-wavelength thermal emission using only the Flight Element, and of gravitational parameters using round-trip Earth-spacecraft-Earth measurements with tracking data from the NH Radio Science Subsystem (tracking data will be archived in separate, non-REX data sets). During the Pluto Charon Encounter mission phase starting in January, 2015, there were several sub-phases: three Approach sub-phases, (AP1, AP2 and AP3); a CORE sequence for the Pluto flyby on 14.July, 2015 (Day Of Year 195), sometimes also referred to as NEP (Near-Encounter Phase); three Departure sub-phases (DP1, DP2, DP3); and a Transition sub-phase which ran to the end of the Encounter mission phase. For this final REX delivery for the Pluto mission phase, this data set includes all data that were downlinked through the end of the Pluto Encounter mission phase in late October, 2016. On Approach during spring of 2015, REX executed only tests and calibration sequences: test patterns; an Operational Readiness Test (ORT) on 08.April of the THERMSCAN observation, and of the Pluto and Charon occulations; ride-alongs with several PEPSSI plasma rolls; a high-power uplink test with DSS-26. From the day of encounter, this data set includes data from two CORE observations: (1) the bi-static radar THERMSCAN data; (2) the Pluto occultation data for both ingress and egress. This data set also includes uplink tuning profile data in, and extracted from, Tracking and Navigation Files (TNFs) for all CORE observations. Boilerplate disclaimer ---------------------- All NH Raw and Calibrated data sets were generated in similar fashion by an automated pipeline; as such, all of the information that follows is boilerplate common to all such NH data sets, with pointers to locations in this data set where more information can be found. Refer to the data set catalog (CATALOG/DATASET.CAT) and documentation (DOCUMENT/), as well as the Required Reading referred to below, plus the files pointed to, for information specific to the instrument and data of this data set. Required Reading ================ Almost all of the New Horizons instruments have complex modes of operation and complex, multi-part data products; users who want to properly understand these data should expect to spend a significant effort (at least a day per instrument) reading about and researching the instrument, the data and the PDS product formats. To support that, the data producer has provided a Required Reading list as a starting point directing the user to NH data set documentation; refer to the DOCUMENT/AAA_GENERIC_README/AAARINFO.TXT file for more detail. Volume Format ============= This volume has been formatted according to the PDS Standards Reference 3.8 version current as of the publication date of this data set. File Formats ============ All text documents and other meta information files such as descriptions, PDS object definitions and detached PDS labels are stream format files, with a carriage return (ASCII 13) and a line feed character (ASCII 10) at the end of the record. This allows the files to be read by most current operating systems. Data are provided in FITS format with detached PDS labels. See the DOCUMENT/AAA_GENERIC_README/AAARINFO.TXT file for a PDS label overview and pointers to suggested FITS & PDS software packages. Volume Contents =============== Files on this volume are organized into a set of sub-directories below the top-level directory. The following table shows the general structure and content of these directories, but does not exhaustively list every file in each directory. See the *INFO.TXT files in each top-level sub-directory for specific information about the files under that directory. In this table, directory names are surrounded by forward slashes (/), and the top-level of the volume is indicated by a single forward slash. Refer to the data set catalog (CATALOG/DATASET.CAT) and the file AAA_GENERIC_README/AAARINFO.TXT for a description of DATA/ sub-directory naming conventions, data filenames and product IDs / Top level of volume | +-- AAREADME.TXT The AAREADME file; a backup is in /DOCUMENT/ | |--/CATALOG/ Directory containing PDS catalog objects. | | | +-- CATINFO.TXT Description of files in the CATALOG directory. | +-- *.* Catalog files | +--/DATA/ Top-level data directory | | | +--DATAINFO.TXT Description of /DATA/ sub-directory | +--/TNF/ Sub-directories of data with tracking files | | | | | +-- *.LBL Data product PDS labels | | +-- *.* Tracking data products | | | +--/YYYYMMDD_MET/ Sub-directories of /DATA/ containing data files | | | +-- *.LBL Data product PDS labels | +-- *.FIT Data product data files (FITS format) | +--/DOCUMENT/ Directory containing dataset-related documents. | | | +-- /AAA_GENERIC_README/ Sub-directory of pointers to more | | | information about NH data sets | | | | | +-- AAARINFO.TXT Description of files in this sub-directory | | +-- *.* Pointers to more information | | | +-- AAREADME_BU.TXT A backup of the top-level /AAREADME.TXT file | +-- DOCINFO.TXT Description of files in the DOCUMENT directory. | +-- *.* Documentation files | | | +--/SAMPLES/ Sub-directory containing data samples | | | | | +-- SAMPINFO.TXT Description of files in the SAMPLES dir. | | +-- *.* Data sample files and documentation | | | +-- /*/ Additional documentation sub-directories | | - Not present in all data sets | | | +-- *.* Additional documentation files | +-- ERRATA.TXT Documentation of errors discovered post-delivery | - ERRATA.TXT is not present in all data sets | +--/EXTRAS/ Top-level directory containing extra files | | | +-- EXTRAINFO.TXT Description of files in the EXTRAS/ directory | +-- *.* EXTRAS/ files | +--/INDEX/ Directory containing index files. | | | +-- INDXINFO.TXT Description of files in the INDEX directory | +-- *.* Index files and labels | +-- VOLDESC.CAT Description of the logical contents of this volume. Whom to Contact for Information =============================== New Horizons REX Principal Investigator: Ivan Linscott David Packard Building - Room 319 350 Serra Mall Stanford, CA 94305-9515 USA New Horizons Science Operations Center (SOC): Tiffany Finley Southwest Research Institute (SwRI) Department of Space Operations 1050 Walnut Street, Suite 400 Boulder, CO 80302 USA