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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 post-launch checkout
Raw VERSION 2.0
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 LAUNCH Raw VERSION 2.0 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 LAUNCH Raw VERSION 2.0 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).
Commissioning of REX comprised tests to determine basic functionality and
performance, including test patterns, reception of DSN uplink signals for
evaluating inflight REX system gain, linearity, stability of the composite
uplink, USO, and REX receiver chain, characterizing the REX bandpass frequency
response, and searching for any spurious signals in the REX passband. These
tests were performed with the spacecraft both in spinning mode and with
attitude stabilized on three axes. Additional tests measured the beam pattern
of the spacecraft high gain antenna, and calibrated the REX system noise
figure and radiometric sensitivity.
Commissioning certified that REX was fully functional and met its performance
metrics.
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