FFPHNT COMMENTS
*-- Author : Stephen Burke
      SUBROUTINE FFPHNT(ICELL,DRIFT,JMIN)
*-----------------------------------------Updates 07/09/93-------                                             
**: FFPHNT 40000 SB. New definition of dead wire flag.                                                        
*-----------------------------------------Updates 27/07/93-------                                             
**: FFPHNT 30907 RP. Farm changes.                                                                            
*-----------------------------------------Updates 06/08/92-------                                             
**: FFPHNT 30907 SB. Add check on bad hit flag.                                                               
*-----------------------------------------Updates----------------                                             
**********************************************************************                                        
*                                                                    *                                        
* Look for a planar digi near a specified point                      *                                        
*                                                                    *                                        
* NB The FRPE bank must have been unpacked into FPLC and FPHC, with  *                                        
* a pointer to FPLC in INDLC(1) in /FFGEO/                           *                                        
*                                                                    *                                        
**********************************************************************                                        
*KEEP,FKNPL.                                                                                                  
*                                                                                                             
* Per-track values can go in H1WORK; note that LTRUE and LFIRST must                                          
* be set at least per event.                                                                                  
*                                                                                                             
* This is about 36k words long; the remaining common blocks are                                               
* about 3.6k in total. Some of this could be in /H1WORK/, but the                                             
* blocks would have to be reorganised.                                                                        
*                                                                                                             
* /FKPROJ/                                                                                                    
* /FKFILT/                                                                                                    
* /FKSMTH/                                                                                                    
* /FKINT/                                                                                                     
* /FKRSID/                                                                                                    
* /FKTRUE/                                                                                                    
* /FKDBG/                                                                                                     
*KEEP,FFGEO.                                                                                                  
*KEEP,BCS.                                                                                                    
*KEEP,CNSTBF.                                                                                                 
*KEEP,STFUNCT.                                                                                                
*     index of element before row number IROW                                                                 
*     index of L'th element  of row number IROW                                                               
*     L'th integer element of the IROW'th row of bank with index IND                                          
*     L'th real element of the IROW'th row of bank with index IND                                             
*KEEP,STFCLW.                                                                                                 
* statement functions acting on the BOS COMMON LW                                                             
*     index of element before row number LWROW                                                                
*     index of L-th element of row number LWROW                                                               
*     L-th integer element of the LWROW'th row in bank with index LND                                         
*     L-th real element of the LWROW'th row in bank with index LND                                            
*                                                                                                             
*KEND.                                                                                                        
**********************************************************************                                        
      INDHC = NLINK('FPHC',0)
* Check for dead wire                                                                                         
*                                                                                                             
* Find the hit with the minimum difference between its drift and                                              
* the target drift. Since the resolution is 150 um and the two-track                                          
* resolution is 2 mm there is never any ambiguity.                                                            
*                                                                                                             
* Check the bad hit flag (if it exists)                                                                       
*