PDS_VERSION_ID       = PDS3                                                   
RECORD_TYPE          = STREAM                                                 
START_TIME           = 2003-09-27T00:00:00                                    
STOP_TIME            = 2003-12-01T23:59:59                                    
DATA_SET_ID          = "MGS-M-RSS-1-EXT-V1.0"                                 
INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR"                                 
TARGET_NAME          = MARS                                                   
^PS_DOCUMENT         = "HEA3342A.PS1"                                         
DESCRIPTION          = "                                                      
                                                                              
   This document is a PostScript file (figure) to accompany the MGS Radio     
   Science Team daily health report (HEA3342A.TXT) for 2003-12-08.            
   'PostScript' is a trademark of Adobe Systems Incorporated."                
                                                                              
OBJECT              = PS_DOCUMENT                                             
 DOCUMENT_NAME       = "FIGURE TO ACCOMPANY HEA3342A.TXT"                     
 PUBLICATION_DATE    = 2003-12-08                                             
 DOCUMENT_TOPIC_TYPE = "DAILY HEALTH REPORT"                                  
 INTERCHANGE_FORMAT  = BINARY                                                 
 DOCUMENT_FORMAT     = "POSTSCRIPT"                                           
 FILES               = 1                                                      
 DESCRIPTION         = "                                                      
                                                                              
  Caption:                                                                    
                                                                              
  HEA3030A.PS1:  X-band (8.4 GHz) equivalent frequency of the UltraStable     
                 oscillator on Mars Global Surveyor during the months of      
                 October and November 2003.  The change in frequency          
                 beginning on 2003-10-29 correlates with unusual solar        
                 activity.  Mars Odyssey 2001 went into safe mode at 0745     
                 UTC on that date.  It appears the MGS USO crystal may        
                 have been affected and that the oscillator settled in to     
                 a new reference frequency over the next approximately 5      
                 days.  The straight line fits to oscillator frequency        
                 (red) show daily drift of the reference frequency before     
                 and after the solar event.  The plot was constructed by      
                 Joe Twicken at Stanford University for the MGS Radio         
                 Science Team."                                               
                                                                              
END_OBJECT          = PS_DOCUMENT                                             
                                                                              
END