PDS_VERSION_ID                     = PDS3                                     
RECORD_TYPE                        = STREAM                                   
                                                                              
OBJECT                             = TEXT                                     
   PUBLICATION_DATE                = 2007-12-03  /* Label Generated */        
   NOTE                            = "Description of the contents of the      
        document directory."                                                  
END_OBJECT                         = TEXT                                     
END                                                                           
                                                                              
"document" Directory Contents                                                 
                                                                              
The document directory contains documentation files, where available, for the 
data set in this volume.  All document files will have an accompanying label  
file to describe content and structure.  Label files have the same name as the
main document file, with an extension of ".lbl".                              
                                                                              
docinfo.txt -  The file you are reading.                                      
                                                                              
ads.txt -  The file sent to Abstract Data Service (ADS).                      
                                                                              
ads.lbl -  The label for ads.txt.                                             
                                                                              
lres15_spec_layout.jpg -  "Spectral layout for LowRes15 (Prism) mode", Image  
        showing the positions of spectral orders on the array for the Low     
        Resolution prism (LowRes15) mode.  This mode covers the interval from 
        0.8 - 2.5 microns with a maximum spectral resolution of R=250 when    
        using the narrowest (0.3 arcsec wide) slit.                           
                                                                              
lres15_spec_layout.lbl - The label file for the document "Spectral layout for 
        LowRes15 (Prism) mode" described above.                               
                                                                              
lxd19_spec_layout.jpg -  "Spectral layout for LXD1.9 mode", Image showing the 
        positions of spectral orders on the array for the Long Cross-Dispersed
        (LXD1.9) mode.  This mode covers the interval from 1.9 - 4.2 microns  
        with a maximum spectral resolution of R=2500 when using the narrowest 
        (0.3 arcsec wide) slit.                                               
                                                                              
lxd19_spec_layout.lbl - The label file for the document "Spectral layout for  
        LXD1.9 mode" described above.                                         
                                                                              
lxd23_spec_layout.jpg -  "Spectral layout for LXD2.3 mode", Image showing the 
        positions of spectral orders on the array for the Long Cross-Dispersed
        (LXD2.3) mode.  This mode covers the interval from 2.3 - 5.5 microns  
        with a maximum spectral resolution of R=2500 when using the narrowest 
        (0.3 arcsec wide) slit.                                               
                                                                              
lxd23_spec_layout.lbl - The label file for the document "Spectral layout for  
        LXD2.3 mode" described above.                                         
                                                                              
spx_log_20050624ut.asc spx_log_20050626ut.asc spx_log_20050627ut.asc          
        spx_log_20050628ut.asc [8 more files not listed] - "Observing Logs", A
        log file for each night of the Comet 9P/Tempel 1 observing campaign,  
        providing start and end times of each observation, exposure times,    
        slit and grating used, etc.   Those files containing "mseq" in the    
        name are spectral image sequences (stored as image cubes) that were   
        taken in "movie-mode" with SpeX.  The last column of the log contains 
        a "Y" of "N", depending of whether or not guider images were being    
        stored at the time the spectra were recorded.  These guider images are
        contained in the companion dataset "IRTF Near-IR Imaging of Comet     
        9P-Tempel 1 V1.0", and could be useful in the flux calibration of the 
        spectra.  Also included in these nightly logs are descriptions of the 
        sky conditions and a listing of optical depth (Tau at 225 GHz)        
        measurements as a function of time.  These Tau measurements (provided 
        by the Caltech Submillimeter Observatory) are strongly correlated with
        precipitable water vapor above Mauna Kea.                             
                                                                              
spx_log_20050xxxut.lbl - The label file for the document "Observing Logs"     
        described above.                                                      
                                                                              
sxd_spec_layout.jpg -  "Spectral layout for SXD mode", Image showing the      
        positions of spectral orders on the array for the Short               
        Cross-Dispersed (SXD) mode.  This mode covers the interval from 0.8 - 
        2.5 microns with a maximum spectral resolution of R=2000 when using   
        the narrowest (0.3 arcsec wide) slit.                                 
                                                                              
sxd_spec_layout.lbl - The label file for the document "Spectral layout for SXD
        mode" described above.