GEODYN-IIS INPUT/OUTPUT FILE NAMES AND BRIEF DESCRIPTIONS

                                                                                
UNIT NO.         FORMAT         DESCRIPTION                                     
           RECFM LRECL BLKSIZE                                                  
---------+---------+---------+---------+---------+---------+---------+--------- 
                                                                                
   1       VBS 6296 6300(DE 96) JPL Planetary Ephemeris input.                  
           VBS 6620 6624(DE118) Necessary for all runs.                         
           VBS 6620 6624(DE200)                                                 
                                                                                
   2       VBS    196   7294    Polar Motion, UT1, and Solar & Geomagnetic      
                                Flux input.                                     
                                Necessary for all runs.                         
                                                                                
   5       FB      80    *      GEODYN-IIS Input Control Data.                  
                                Necessary for all runs.                         
                                                                                
   6       VBA    137    #      General Printer Output.                         
                                                                                
   8       FB      80           LRA correction file                             
                                                                                
  11                            Interface File output to GEODYN-IIE             
BINARY     VBS     X  15476     Allocated default space of 90 tracks will hold  
ASCII      FB     132 15048     4050 blocks of observations and minimal         
                                number  of parameters. Recommended              
                                space is 30 tracks, and in case additional      
                                space is needed, add 1 track per 45 blocks of   
                                observations.                                   
                                Space on unit 11 is a function of the number    
                                and the type of the parameters used, the        
                                number of observations and the number of        
                                blocks of observations.                         
                                                                                
  12       FB      80    *      Default Gravity File.                           
                                See description at the end of this section.     
                                (Section 3.5)                                 
                                                                                
  15       FB      80  3120     Default Spacecraft Area and Mass Table.         
                                (DUMMY) N/A                                     
                                                                                
  16       FB      80    *      Default Station Geodetics File.                 
                                See description at the end of this section.     
                                (Section 3.6)
MAY 1995

9505.0

                                                                                
UNIT NO.         FORMAT         DESCRIPTION                                     
           RECFM LRECL BLKSIZE                                                  
---------+---------+---------+---------+---------+---------+---------+--------- 
  17       FB      80    *      Default Simulated Data Control Data             
                                See description at the end of this section.     
                                (Section 3.7)                                 
                                                                                
  18     VBS       X 15476      File which contains harmonic expansion          
                                coefficients that describe the atmospheric      
                                effect on the gravity coefficients              
                                (See Vol 3 ATGRAV)                              
                                                                                
  20      VBS      X  15476     Proudman functions input file (See Vol 3        
                                OTMOD and Vol 5 Section 2.10)                   
                                                                                
  21      VBS      X  15476     Sea Surface Topography functions input file     
                                (See Vol 3 SSTMOD and Vol 5 Section 2.10)       

  23      FB       80 8000      Input file for station height modification
                                (See INSTRMNT card col. 10)
                                                                                
  30      VBS      X  15476     Scratch file used for planetary                 
                                ephemeris processing.                           
                                Allocated space of 5 tracks will hold           
                                1135 ephemeris records (32 days each. For       
                                additional n output records increase the        
                                number of tracks by ((n-1)/227)+1.              
                                                                                
                                                                                
  40      VBS      X  15476     Input Observation Data file                     
                                (from Tracking Data Formatter).                 
                                Necessary for all data reduction runs.          
                                                                                
  41                            Selected Observation Data file output to        
BINARY    VBS      X  15476     GEODYN-IIE. Necessary for all data reduction    
ASCII     FB      132 15048     runs.                                           
                                One track is required for every 50-100          
                                observations depending on measurement type.     
                                Default allocated space 60 tracks.              
                                                                                
  42       U          32000     Observation Directory scratch file.             
                                Allocated space of 200 blocks of 32000 bytes    
                                each will hold 200 observation directory        
                                records. The number of observation directory    
                                records is also the number of output logical    
                                blocks of observations. For additional space    
                                the maximum number of observations per pass/500 
                                gives the number of output logical blocks and   
                                therefore the number of additional blocks       
                                required.
NOV 1994

9411.0

                                                                                
UNIT NO.         FORMAT         DESCRIPTION                                     
           RECFM LRECL BLKSIZE                                                  
---------+---------+---------+---------+---------+---------+---------+--------- 
  43      VBS      X  15476     Pass-by-pass bias scratch file.                 
                                Allocated space of 10 tracks will hold          
                                2020 pass records. For additional passes        
                                increase the number of tracks by ((n-1)/202)+1  
                                                                                
  50      FB      80   3520     Copy of setup deck scratch file.                
                                Allocated space of 6 tracks will                
                                hold information from 1428 cards.               
                                For additional n input cards                    
                                increase number of tracks by n*80/BLKSIZE       
                                                                                
  52      VBS     X   15476     Scratch files for ARC information.              
                                Allocated space should be less than or          
                                equal to the space required for UNIT 11.        
                                                                                
  53      VBS     X   15476     Scratch files for ARC information.              
                                Allocated space should be less than or          
                                equal to the space required for UNIT 11.        
                                                                                
  88      FB     80   15040     File containing GEODYN warnings for the         
                                TOPEX Expert Systems.                           
                                                                                
  89      VBS     X   15476     File containing A1-UTC time differences         
                                                                                
  90                            Debugging output file (DUMMY)                   
                                                                                
  91                            Debugging output file (DUMMY)                   
                                                                                
 ** exat## VBS    X   15476     External attitude file.  ## is the number of    
                                the arc for which the external attitude applies.
                                                                                
* BLKSIZE FOR FB FILES IS PROVIDED BY THE SYSTEM                                
** THERE IS NO UNIT NO. FOR THIS FILE. FILENAME IS SPECIFIED EXPLICITLY.        
# BLKSIZE FOR VBA FILES IS PROVIDED BY THE SYSTEM
DEC 1992

9212.0


Patrick Dahiroc
1998-09-10