SIGVEL

                                                                                
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
SIGVEL                                                                          
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
                                                                                
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
1-6     A6     SIGVEL: Requests adjustment of the                               
               velocities for the preceeding station.                           
                                                                                
13-20   I8     Station number                                                   
                                                                                
21-35   D15.6  Sigma for the first velocity component         0        M/S      
                                                                                
                                                                                
36-50   D15.6  Sigma for the second velocity component        0        M/S      
                                                                                
                                                                                
51-65   D15.6  Sigma for the third velocity component         0        M/S      
                                                                                
                                                                                
NOTE :   A SIGVEL card must follow the equivalent STAVEL and TIMVEL card if     
         velocity adjustment for the preceeding station is requested.           
                                                                                
                                                                                
                                                                                
UNITS:  KM =Kilometers; M  =Meters    ; S  =Seconds    ; M/S=Meters per second  
        H  =Hertz     ; MH =Mega-Hertz; YR=years                                
                                                                                
                                                                                
IF CARD OMITTED:  Velocities will be applied on the preceeding station but no   
                  velocity adjustment will take place.
AUG 1985

8507.0

STATION POSITION SUBGROUP



Patrick Dahiroc
1998-09-10