ACCEL9

                                                                                
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
ACCEL999         7603901            1.80D-12                                    
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
1-6     A6        ACCEL9 - Requests application and/or                          
                  adjustment of general acceleration.                           
                                                                                
                                                                                
9       I1        Indicates direction of 9 parameter general     0              
                  acceleration                                                  
                                                                                
                    1 - Along Track ((R x V) x R)                               
                    2 - Cross Track (R x V)                                     
                    3 - Radial      (R)                                         
                                                                                
10      I1        Indicates type of 9 parameter general          0              
                  acceleration parameter                                        
                                                                                
                    1 - Cosine coefficient (A)                                  
                    2 - Sine coefficient   (B)                                  
                    3 - Constant           (C)                                  
                                                                                
11-12   I2        Indicates if this card will be used to         0              
                  specify period end time for 9 parameter                       
                  general acceleration option.                                  
                  See NOTE[2] for details.                                      
                                                                                
                   99 - Card DOES specify 9 parameter                           
                        general acceleration end time.                          
                                                                                
18-24   I7        Satellite ID (required).                       0

JUNE 1991

9106.0

ARC SET - Option Cards

ACCEL9 (cont)

                                                                                
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
                                                                                
25-44   D20.8     A priori value of acceleration                 0.    M/S**2   
                  coefficients.                                     or M/S**3   
                                                                    or M/S**4   
                                                                                
45-59   D15.3     This field must be left blank unless the       0.             
                  time dependent acceleration option is                         
                  wanted. To select time dependent accel-                       
                  eration the end time of the period for                        
                  which this acceleration coefficient                           
                  applies is input in the form                                  
                  YYMMDDHHMMSS.SS in this field.                                
                                                                                
60-72   D13.1     A priori sigma of acceleration                 0.    M/S**2   
                              coefficient.                          or M/S**3   
                                                                    or M/S**4   
                                                                                
NOTE[1]:                                                                        
        When choosing the nine parameter general acceleration model,            
        a card specifying the period endtime (99 in Cols.11-12) must            
        precede all other cards.  A priori values for the coefficients          
        in this period must follow subsequently.  One no longer has to          
        include all nine cards for each coefficient in a period.                
                                                                                
                                                                                
 EXAMPLE:  ACCEL cards for time dependent 9 parameter general accelerations     
                                                                                
                                                                                
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
ACCEL9    99     7603901                    851230010000.00                     
ACCEL9  11       7603901             1.1D-11                       1.0D0        
ACCEL9  12       7603901             2.2D-11                       1.0D0        
ACCEL9  21       7603901             4.4D-11                                    
ACCEL9  22       7603901             5.5D-11                       1.0D0        
ACCEL9    99     7603901                    860101000000.00                     
ACCEL9  31       7603901             7.7D-11                                    
ACCEL9  32       7603901             8.8D-11                                    
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0

JUNE 1991

9106.0

ARC SET - Option Cards

ACCEL9 (cont)

                                                                                
                                                                                
UNITS:  KM =Kilometers; M  =Meters    ; S  =Seconds    ; Kg =Kilograms          
        DEG=Degrees   ; RAD=Radians   ; AS =Arc seconds; MAS=Milli-arc seconds  
                                                                                
                                                                                
                                                                                
                                                                                
WARNINGS: If duplicate time periods are specified the run will terminate        
          in IIS with a warning message.                                        
          The first time period that exceeds the end time of the run            
          (see EPOCH card) will be accepted. All other end times exceeding      
          the end time of the run will be ignored.                              
                                                                                
                                                                                
                                                                                
                                                                                
IF CARD OMITTED: General accelerations are not applied

NOV 1994

9411.0

ARC SET - Option Cards



Patrick Dahiroc
1998-09-10