Index of /holdings/sdu-c-navcam-3-rdr-wild2-v3.0

Icon  Name                    Last modified      Size  Description
[DIR] Parent Directory - [DIR] browse/ 20-Oct-2015 14:16 - [DIR] calib/ 20-Oct-2015 14:16 - [DIR] catalog/ 20-Oct-2015 14:16 - [DIR] data/ 20-Oct-2015 14:14 - [DIR] document/ 20-Oct-2015 14:14 - [DIR] DOWNLOAD/ 20-Oct-2015 14:58 - [DIR] extras/ 20-Oct-2015 14:14 - [DIR] index/ 20-Oct-2015 14:14 - [DIR] NOTES/ 20-Oct-2015 15:03 - [TXT] aareadme.txt 10-Oct-2015 16:54 35K [TXT] dataset.html 27-Oct-2017 12:51 3.7K [TXT] errata.txt 26-Jun-2014 14:03 3.4K [   ] 10-Oct-2015 13:41 4.2K [PDS catalog file]
PDS_VERSION_ID  = PDS3                                                        
LABEL_REVISION_NOTE = "                                                       
2012-02-21 Cornell:BTCarcich incorporated comments from Ken Klaasen.          
2014-05    Latchmoor:BTCarcich updated for re-calibration of Wild 2 and       
                     and Annefrank data                                       
2015-10    Latchmoor:BTCarcich Lien resolution                                
RECORD_TYPE     = FIXED_LENGTH                                                
RECORD_BYTES    = 80                                                          
MISSION_NAME    = "STARDUST"                                                  
INSTRUMENT_HOST_NAME = "STARDUST"                                             
OBJECT          = TEXT                                                        
  PUBLICATION_DATE = 2014-07-31                                               
  NOTE             = "Stardust archive data.  This is the 'Read me first'     
                      file for this data set.  It is duplicated in two        
                      places in the data set:  in the top-level directory as  
                       AAREADME.TXT; in the DOCUMENT/ directory as            
                      AAAREADME.TXT.  The Planetary Data System (PDS)         
                      standard requires the former former but PDS does        
                      not guarantee its preservation, so it is duplicated     
                      in the DOCUMENT/ directory."                            
END_OBJECT      = TEXT                                                        
Stardust Planetary Data System (PDS) archive data set for NAVCAM RDR          
(calibrated) data.                                                            
This file is the "Read me first" file for this data set.  Its purpose is to   
be the starting point for any user who wishes to view and understand the data 
in this data set.  It contains a high-level description of the contents of    
this data set, and points the user to other documents in this data set that   
contain more detailed descriptions of the data along with pointers to         
additional documentation.  If the information in this data set is represented 
as a tree, with each file as a leaf covering a specific area or sampled data, 
then this file is the root of the tree.  Some of the 'leaves' contain         
reference to external information sources such as journal articles or other   
data sets; those references are considered an integral part of this data set  
and are often critical for understanding the data.  Where possible and if     
allowed by journal publisher policies and applicable copyright law, versions  
of those publications have been provided in the documentation of this data    
set; those provided versions may be pre-print or draft versions, and may not  
be identical to the published version; such situations will be called out in  
the documentation labels; data set users will have to contact the publisher   
directly and may need to pay to obtain the published version.                 
All of the EDR and RDR data sets for the Stardust mission NAVCAM instrument   
data have been prepared in a similar manner, so the "Read me first" files for 
these data sets will be identical.  For data set-specific details e.g.        
specific targets, see the CATALOG/ and DOCUMENT/ 'branches'.                  
This file comprises the following sections:                                   
  1) Introduction to this data set, including pointers to other files that    
     explain what is in the data set                                          
     1.1) Quick start                                                         
     1.2) Product description                                                 
  2) Data set medium format                                                   
  3) File formats - where to learn about the formats used in this data set    
  4) Data set contents - a high-level description of the directory layout     
  5) Recommended computer software                                            
  6) Errata, Disclaimer and PDSDD                                             
     6.1) PDS Data Dictionary (PDSDD)                                         
  7) Whom to Contact for further Information                                  
1) Introduction                                                               
This volume contains NAVCAM CODMAC level 2/3 products from the Stardust prime 
mission.  It also contains documentation which describes these products.      
1.1) Quick start:                                                             
The data set files are laid out with a directory (a.k.a. folder) structure.   
The most important top-level directories are CATALOG/, DOCUMENT/ and DATA/.   
The CATALOG/ directory contains high-level PDS catalog files which describe   
the mission, spacecraft, instrument and other information related to this     
data set.  The catalog files also contain references to external materials    
such as journal articles.  See CATALOG/CATINFO.TXT for more details.          
The DOCUMENT/ directory contains more detailed descriptions of this data set. 
See DOCUMENT/DOCINFO.TXT for more details.                                    
The DATA/ directory contains the data in this data set.  Subdirectories       
partition the data by date and/or by target.  Each data product has a         
corresponding Planetary Data System (PDS) data label in accordance with the   
Standards reference, Version 3.8, document JPL D-7669.  See                   
DOCUMENT/DATAINFO.TXT for more details.                                       
The BROWSE/ directory contains a browsing facility for the data.  See         
BROWSE/BROWINFO.TXT for more details.                                         
1.2) Product description                                                      
This data set contains calibrated (RDR) data from the Stardust NAVCAM         
Each NAVCAM calibrated (RDR) product comprises several sections:  the image   
pixel data from the CCD calibrated to spectral radiance; the BaseLine         
Stabilization (BLS or bias) pixels from the CCD electronics; the prefix table 
from the instrument telemetry; the image histogram from the ground data       
system; the original PDS label from the ground data system; a quality map of  
the image; an uncertainty map; a signal-to-noise ratio (SNR) map.             
Note that, to save on limited downlink at the time some image observations    
were made, only rectangular window subsets of the the full-frame of pixels    
were telemetered to Earth.  This can be identified by WINDOW objects in PDS   
labels, and by the appearance of the image as gray/white rectangle against a  
rectangles against a black background in the BROWSE/ images.  Note that BLS   
pixels are not avalable in these windowed images, which affects their         
calibration.  Refer to the documentation and the calibration paper            
[KLAASENETAL2011B] for more detail about the effect windowing has on data     
further details.                                                              
The products archived in this volume have all been released by the            
Stardust Project.                                                             
2) Data set medium format                                                     
This data set has been delivered to PDS in an electronic format, transferred  
via either the Internet or portable disk drive.  User access will typically   
be via a web browser over the Internet to a web server at the Small Bodies    
Node of PDS (PDS-SBN; currently  Duplicating   
the directory hierarchy and contents recursively from the directory which     
contains this AAREADME.TXT file and below is all that is required to copy     
this data set.                                                                
3) File format                                                                
Each data product and all files with content have a PDS label.  The PDS label 
is the definitive and complete source describing the data layout and format   
in each product in this data set.  The PDS label may be attached or detached. 
Attached labels are in the same file as the data at the start of the file.    
Detached labels are separate files with pointers to the data files; detached  
label filenames always end in .LBL or .lbl.  The label files conform to the   
Planetary Data System (PDS) Standards, Version 3.8, Jet Propulsion Laboratory 
(JPL) document JPL D-7669 Part 2; refer to this standards reference for       
details in interpreting the label and contents of any file in this data set.  
PDS labels for data products also contain parameter values such as the start  
and end times of the data in the data product.                                
NAVCAM image data products are stored as Primary Data Unit (PDU) images and   
multiple Extension Data Units (EDUs) in FITS files; see                       
FITS-savvy users may use existing FITS software to view and process these     
data.  However, the PDS labels adequately describe both the conditions of     
each observation (geometry, camera parameters, &c) and the data layout and    
format in the files, so FITS software is not necessary to work with these     
data.  The FITS headers in the files were developed for use by the science    
team and are provided as-is with no documentation beyond the comments that    
follow most FITS header keyword values.                                       
All detached label files contain 80-byte fixed-length records, with a         
carriage return character (ASCII 13) in the 79th byte and a line feed         
character (ASCII 10) in the 80th byte.  This format allows the files to be    
read by many different operating systems (e.g. MacOS, Windows, DOS, Unix,     
Linux, VMS etc.).   All tabular files are also described by PDS labels,       
either embedded at the beginning of the file (attached) or detached.  If      
detached, the PDS label file has the same, or a similar, name as the data     
file(s) it describes, with the extension .LBL; for example, the file          
INDEX.TAB is accompanied by the detached label file INDEX.LBL in the same     
Tabular files are formatted so that they may be read directly into many       
database management systems on various computers. All fields are separated by 
commas, and character fields are enclosed in double quotation marks (").      
Character fields are left justified, and numeric fields are right justified.  
The "start byte" and "bytes" values listed in the labels do not include the   
commas between fields or the quotation marks surrounding character fields.    
The records are of fixed length, and the last two bytes of each record        
contain the ASCII carriage return and line feed characters. This allows a     
table to be treated as a fixed length record file on computers that support   
this file type and as a normal text file on other computers.                  
4) Data set contents and directory layout                                     
The following ASCII graphic describes the file layout of this data set.       
  +--AAREADME.TXT         The text version of the "Read me first" file.       
  |                       This file is the starting point for documentation   
  |                       describing this data set.  A duplicate of this      
  |                       file has been placed in the DOCUMENT/ directory     
  |                       as AAAREADME.TXT because PDS does not guarantee     
  |                       preservation of this top-level AAREADME.TXT file.   
  +--ERRATA.TXT           File listing known data set anomalies and errors    
  +--VOLDESC.CAT          Description of the contents of this volume.         
  +--CATALOG/             Directory containing PDS catalog objects; refer     
  |  |                    to CATINFO.TXT for details.                         
  |  +--CATINFO.TXT         File with detailed description of contents of     
  |  |                      CATALOG/ directory.                               
  |  +--*.CAT               Catalog files (mission, spacecraft, instrument,   
  |                         data set, personnel, references)                  
  +--DATA/                Directory containing NAVCAM data files; refer to    
  |  |                    DATAINFO.TXT for details.                           
  |  +--DATAINFO.TXT        File describing the layout of data files under    
  |  |                      the DATA/ directory along with any optional       
  |  |                      subdirectories.                                   
  |  |...<path>/            Optional subdirectories of DATA/, described in    
  |  |                      DATAINFO.TXT.                                     
  |  |...<path>/*.LBL         Optional detached labels for data files         
  |  |...<path>/*.*           The data files themselves                       
  +--DOCUMENT/            Directory containing documents necessary for        
  |  |                    understanding this data set; refer to DOCINFO.TXT   
  |  |                    for details.                                        
  |  +--DOCINFO.TXT         File with detailed description of contents of     
  |  |                      DOCUMENT/ directory                               
  |  |                                                                        
  |  +--AAAREADME.TXT       Duplicate of top-level AAREADME.TXT; see above    
  |  |                                                                        
  |  +--*.TXT               Documents with attached labels                    
  |  +--*.LBL               Detached PDS labels, one for each document.       
  |  |                      Each label may refer to more than one file.       
  |  |                      Each label has a DESCRIPTION keyword, the value   
  |  |                      of which describes the document.                  
  |  +--*.*                 The documents themselves                          
  |  |                                                                        
  |  +--*/                  Subdirectory(ies) of DOCUMENT/.  See              
  |                         DOCINFO.TXT for more information.                 
  +--INDEX/               Directory containing tabular summaries of the       
  |  |                    data and files in this data set; refer to           
  |  |                    INDXINFO.TXT for details.                           
  |  +--INDXINFO.TXT         File with detailed description of contents of    
  |  |                       of INDEX/ directory.                             
  |  +--*.LBL               PDS labels, one for each index.                   
  |  +--*.TAB               Index tables                                      
  +--BROWSE/              Directory containing data set browse facility;      
  |  |                    refer to BROWINFO.TXT for details                   
  |  +--BROWINFO.TXT        File with detailed description of contents of     
  |  |                       of BROWSE/ directory.                            
  |  |                                                                        
  |  +--*.LBL               PDS labels                                        
  |  +--*.*                 Browse files                                      
  |  |                                                                        
  |  +--*/                  BROWSE/ subdirectories                            
  +--EXTRAS/              Directory containing additional information that    
     |                    may be useful for understanding this data set,      
     |                    but which does not readily fit in one of the        
     |                    other PDS categories.  See EXTRINFO.TXT for         
     |                    details.                                            
     +--EXTRINFO.TXT        File with detailed description of contents of     
     |                      EXTRAS/ directory.                                
     +--PDSDD_NEXT.FULL     Proposed PDS Data Dictionary (See 6.1 below)      
     +--*.*                 Any EXTRAS/ files.                                
     +--*/                  Any EXTRAS/ subdirectories.                       
5) Recommended computer software                                              
As noted above, this data set was delivered to PDS-SBN in electronic format.  
Any computer system capable of replicating the directory (folder) structure   
should be able to maintain a usable copy of this data set.  At the time of    
the delivery of this data set (2011 A.D.), that specification will be met by  
computers running the following operating systems:  Microsoft Windows; Apple  
Mac OSX; Unix(tm) derivatives including Linux; VMS.                           
Tabular data may be imported into a spreadsheet application (   
Spreadsheet or Microsoft Office Excel) or a database application (MySQL,      
PostgreSQL, Microsoft SQL Server or Microsoft Office Access).  Tabular data   
may also be viewed with a PDS tool called NasaView:                           
PDS supplies tools that may be of use in viewing the data files in this data  
NAVCAM image data can be viewed with NasaView, as well as by using FITS       
libraries within other programming environments:                              
  FITSIO library in several environments (C, FORTRAN, etc.)                   
  Native FITS reader in Matlab                                                
  IDL Astronomy Library (                      
Documentation and data labels may be viewed with word processing              
applications: Word Processor; Microsoft Office Word; editors  
such as VI, VIM, GEDIT and others in the Linux/Unix(tm) environment.  ASCII   
files, such as tables and PDS labels, may be viewed with many web browsers.   
Some documentation files are stored as PDF (Portable Document Format) files;  
PDF filenames will end in .PDF (case-insensitive).  A PDF reader (e.g.        
Acrobat reader on Windows and Mac OSX, acroread on Unix, Document Viewer on   
Linux, or a PDF plug-in for a web browser) is necessary to view these files,  
but in the absence of such readers most PDF documents also have alternate     
versions that will be easier to view.                                         
6) Errata, Disclaimer and PDSDD                                               
A cumulative list of anomalies and errors is maintained in the file           
ERRATA.TXT at the root directory of this volume.  Over time and multiple      
versions of this data set it is anticipated that the errors will be corrected 
and the anomalies incorporated into the data set documentation.  Users should 
always check the latest ERRATA.TXT file for this data set before using the    
data for any purpose.                                                         
Although considerable care has gone into making this volume, errors are both  
possible and likely.  Users of the data are advised to exercise the same      
caution as they would when dealing with any other unknown data set.           
At the time of delivery of this data set no known anomalies exist and the     
ERRATA.TXT file comprises only its attached label.                            
Reports of errors or difficulties would be appreciated; please contact PDS.   
6.1) PDS Data Dictionary (PDSDD)                                              
This data set presupposes and proposes the following STANDARD_VALUE_SET       
entries will be added to the PDS Data Dictionary (relative to PDSDD 1r92),    
plus some other minor changes also listed below.                              
See also the file PDSDD_NEW.FULL in the EXTRAS/ directory.  Until those       
entries are added, PDS validation tools may generate errors and/or warnings   
when run against this data set, as well as recent Stardust-NExT data sets.    
Changes proposed for all Stardust instrument data sets (CIDA, DFMI, NAVCAM)   
are included here so PDS personnel do not have to browse several data sets    
to compile the proposed changes.                                              
6.1.1) STANDARD_VALUE_TYPE additions to PDSDD                                 
  Keyword             _TYPE      New entry                                    
  ------------        ---------  ---------                                    
  DATA_SET_ID         FORMATION  SDU-A-NAVCAM-2-EDR-WILD2-V3.0                
  DATA_SET_ID         FORMATION  SDU-A-NAVCAM-3-RDR-WILD2-V3.0                
                                                     ANNEFRANK - VERSION 3.0  
                                                     ANNEFRANK - VERSION 1.0  
                                                       81P/WILD 2 - VERS 3.0  
                                                        WILD 2 - VERSION 3.0  
  DOCUMENT_FORMAT     DYNAMIC    MICROSOFT EXCEL                              
  DOCUMENT_FORMAT     DYNAMIC    WAVE                                         
  DOCUMENT_TOPIC_TYPE SUGGESTED  DATA LOG                                     
  FILTER_NAME         DYNAMIC    OPNAV                                        
  INSTRUMENT_MODE_ID  DYNAMIC    NEGATIVE ION MODE                            
  INSTRUMENT_MODE_ID  DYNAMIC    POSITIVE ION MODE                            
  MISSION_PHASE_NAME  DYNAMIC    CHECKOUT                                     
  MISSION_PHASE_NAME  DYNAMIC    CRUISE 5                                     
  MISSION_PHASE_NAME  DYNAMIC    CRUISE 6                                     
  MISSION_PHASE_NAME  DYNAMIC    TEMPEL 1 ENCOUNTER                           
  MISSION_PHASE_NAME  DYNAMIC    WILD 2 ENCOUNTER                             
  PRODUCT_TYPE        SUGGESTED  FDAQ_CALIBRATION                             
  PRODUCT_TYPE        SUGGESTED  GLOBAL_VARIABLES                             
  PRODUCT_TYPE        SUGGESTED  HOUSEKEEPING                                 
  PRODUCT_TYPE        SUGGESTED  SPECTRUM                                     
  VOLUME_SET_NAME     DYNAMIC    STARDUST CIDA DATA                           
6.1.2) Other changes to PDSDD                                                 
                                                                      New PDS keyword: SDU:TARGET_RIGHTUPOFFSETWRTLEFTBOT                  
  This is a new, mission-specific keyword; see DOCUMENT/ONLABELS.TXT and      
  EXTRAS/PDSDD_NEW.FULL for details.                                          
                                                                      Change GENERAL_DATA_TYPE to DECIMAL for PDS keyword CHECKSUM         
  The current GENERAL_DATA_TYPE value of INTEGER limits CHECKSUM values to    
  signed 32-bit values (see Note 1); the CHECKSUM keyword is further limited  
  to non-negative values (the MINIMUM is set to zero).  The new               
  SDU-C-NAVCAM-2-EDR-WILD2-V3.0 data set has one image label                  
  (N0643WE02.LBL) with a checksum of 2,155,792,173 (1024x1024 pixels with a   
  mean value of 2055+), which is correct but exceeds the current upper limit  
  (see Note 1).  Changing the GENERAL_DATA_TYPE to decimal will remove that   
  upper limit.  Note that to complete this change the DESCRIPTION of the      
  GENERAL_DATA_TYPE also designates of the CHECKSUM value as a "non-negative  
  decimal sum."                                                               
  The downside of this change is that it allows floating point values for the 
  CHECKSUM keyword, which is not correct.                                     
  Alternative fixes:                                                          
  1) add an UNSIGNED_INTEGER option to GENERAL_DATA_TYPE in the PDSDD; this   
     will still fail for CHECKSUM values beyond the unsigned 32-bit limit     
  Note 1:  INTEGER has a range of -2,147,483,648 to +2,147,483,647 inclusive; 
           DESCRIPTION states the value is an "unsigned 32-bit sum," but the  
           GENERAL_DATA_TYPE of INTEGER does not make such a distinction by   
           itself when interpreted by validation tools.                       
7) Whom to Contact for further Information                                    
  Department of Astronomy                                                     
  Small Bodies Node                                                           
  University of Maryland                                                      
  College Park, MD   20742-2421                                               
  +01(301) 405-5024(o)                                                        
  +01(301) 405-3538(f)