PDS_VERSION_ID                 = PDS3                                         
                                                                              
OBJECT                         = INSTRUMENT_HOST                              
                                                                              
INSTRUMENT_HOST_ID             = CON                                          
                                                                              
OBJECT                         = INSTRUMENT_HOST_INFORMATION                  
                                                                              
INSTRUMENT_HOST_NAME           = "COMET NUCLEUS TOUR"
INSTRUMENT_HOST_TYPE           = "SPACECRAFT"                                 
INSTRUMENT_HOST_DESC           =                                              
"                                                                             
                                                                              
The spacecraft design is simple. CONTOUR has few articulated mechanisms; the  
solar array is body mounted and does not require drive motors. The mission    
geometry allows CONTOUR to use fixed, passive, existing antenna designs. With 
the exception of along-track pointing of CRISP,all instrument pointing and    
antenna pointing is controlled by moving the spacecraft. A dust shield made   
of Nextel and Kelvar protects against impacts for the dust sizes and          
densities expected at the three encounters.                                   
                                                                              
From http://www.contour2002.org/overview2.html                                
                                                                              
The core of the CONTOUR imaging and spectral mapping experiments is the       
CRISP. It will have a target tracking capability to ensure that the key       
high-resolution frames are obtained. The instrument payload also includes     
CFI, a simple wide-angle camera to serve as backup and provide global views   
of the nucleus and coma.                                                      
                                                                              
The mass spectrometer, NGIMS, and dust analyzer, CIDA, will be mounted to     
look in the direction of flight at closest approach. NGIMS will be provided   
by NASA Goddard Space Flight Center. It will be placed on the spacecraft      
within the dust shield as far forward as possible to minimize contamination   
from spacecraft impact debris. The CIDA will be a significantly improved      
version of instruments that were flown successfully on Vega and Giotto during 
the Halley encounters.                                                        
                                                                              
From http://www.contour2002.org/overview3.html                                
                                                                              
Copyright 2002 NASA Discovery Program                                         
Used by Permission                                                            
                                                                              
The reference is listed as N/A (not applicable) below because the mission     
ended before any significant publications.                                    
"                                                                             
END_OBJECT                     = INSTRUMENT_HOST_INFORMATION                  
                                                                              
OBJECT                         = INSTRUMENT_HOST_REFERENCE_INFO               
 REFERENCE_KEY_ID               = "N/A"                                       
END_OBJECT                     = INSTRUMENT_HOST_REFERENCE_INFO               
                                                                              
END_OBJECT                     = INSTRUMENT_HOST                              
END