PDS_VERSION_ID       = PDS3                                                   
RECORD_TYPE          = STREAM                                                 
START_TIME           = 1999-06-05T00:00:00Z                                   
STOP_TIME            = 1999-06-25T00:00:00Z                                   
DATA_SET_ID          = "MGS-M-RSS-1-MAP-V1.0"                                 
INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR"                                 
TARGET_NAME          = MARS                                                   
^PS_DOCUMENT         = "HEA9200A.PS1"                                         
DESCRIPTION          = "                                                      
                                                                              
     This document is one PostScript file (a figure) accompanying the MGS     
     Radio Science Team daily health report (HEA9200A.TXT) for 1999-07-19.    
     'PostScript' is a trademark of Adobe Systems Incorporated."              
                                                                              
OBJECT              = PS_DOCUMENT                                             
 DOCUMENT_NAME       = "FIGURE TO ACCOMPANY HEA9200A.TXT"                     
 PUBLICATION_DATE    = 1999-07-19                                             
 DOCUMENT_TOPIC_TYPE = "DAILY HEALTH REPORT"                                  
 INTERCHANGE_FORMAT  = BINARY                                                 
 DOCUMENT_FORMAT     = "POSTSCRIPT"                                           
 FILES               = 1                                                      
 DESCRIPTION         = "                                                      
                                                                              
     Caption: Allan Deviation versus time for twenty recent days.  As         
     part of troubleshooting at SPC 40, Trish Priest has asked whether        
     there were discernible differences in Allan Deviation from DSP-1         
     and DSP-2.  Joe Twicken computed and plotted values, not only for        
     SPC 40, but for all complexes at both 0.82 and 3.28 sec integrations.    
     Although there are variations, it does not appear that any complex       
     is significantly better or worse than another.  Nor does it appear       
     that DSP-1 (used on some days at SPC 40) is either better or worse       
     than DSP-2 in its Allan Deviation.  The 3.28 sec Allan Deviations        
     (not shown) are somewhat lower than the 0.8 sec values, and their        
     (subjective) spread is about twice as much."                             
                                                                              
END_OBJECT          = PS_DOCUMENT                                             
                                                                              
END