C      ************         IFAIL   FOR     SQUAW      ***************
C       IFAIL                 REASON                          SET IN
C       11     CHISQ TOO HIGH,NO SOLN                          TEST
C       12     TOO MANY STEPS (GREATER THAN MTSTEP)            TEST
C       13     BAD MM IN TEST USE OF EV.CODING                 NONAN
C       14     KKT FAILURE                                     NONAN
C       15     BAD FSUM, BUT SUPPOSED SOLUTION                 TEST
C       20     TOO MANY TOTAL CUTS (GREATER THAN MTCUT)        CUT
C       21     TOO MANY SUCCESSIVE CUTS                        CUT
C       22     SOLUTION WITH HIGH CHISQ                        TEST
C       23     APPROX FAILURE (USUALLY UNDERCONSTRAINED)       APPROX
C       24     TP TRACK FAILURE                                RDY
C       25     IONIZATION OR KPT BAD                           RDY
C       26     HH IS SINGULAR                                  NEWVAL
C       27     BEAM MEASUREMENT INCONSISTENT WITH STD.         BMAVG
C       28     NUMBER OF CONSTRAINTS LESS THAN DESIRED         LISET
C       30     DIMENSION EXCEEDED-TRACKS,VERTICES CORRELATIONS LISET
C       31     DIMENSION EXCEEDED - VARIABLES                  LISET
C       32     EVENT TYPE NOT CODED                            ETYPE
C       33     OUTPUT BUFFER EXCEEDED                          BINSET
C       34     TOO MANY CHARGE-NEUTRAL CORRELATIONS            DOXTND
C       35     TOO MANY INTERTRACK CORRELATIONS                DOXTND,WM
C       36     TOO MANY TRACKS OR VERTICES                     GOFIT
C       37     TOO MANY COPLANARITY CONSTRAINTS                LINQUE
C       38     LOOP IN AMBIG                                   GOFIT
C       40     MAIN VERTEX FIT USES 2NDARY FIT THAT FAILED     FUDGE (UN
C       50     UNDERCONSTRAINED                                LISET
C       51     TRIED TO CUT ZEROETH STEP                       CUT
C       52     TT SINGULAR (NO FIT)  (IE FULL FITTING MATRIX)  NEWVAL
C       53     TT SINGULAR (FIT)  (IE ERROR MATRIX)            EFORM
C       54     BEAM AVERAGE MATRIX SINGULAR                    BMAVG
C       55     OVERSTOPPED CHARGE TRACK IN EXTENDING           DOXTND
C       56     UNDEFINED LSN (OLD LSZ) NUMBER FOR TRACK        WMSET
C       57     ERROR MATRIX (MEAS) NOT POSITIVE DEF            WMSET
C       58     NEGATIVE DIAGONAL FITTED ERROR ELEMENT          PICON
C       59     PHI TOO LARGE                                   FKINE
C      -10     KPT FAILURE                                     INSET
C      -20     BAD POINT SCATTER                               INSET
C       
C             THE CUT STEPS ARE THE FOLLOWING KINDS
C      LCUT(1)   MASS LESS THAN ZERO (WHEN TYPE 1)
C           2    K   (THE FITTING VARIABLE CURVATURE) LESS THAN ZERO
C           3    RANGE AT END OF INBOUND TRACK NEGATIVE (OVERSTOPPED)
C           4    CONSTRAINTS FAILED TO IMPROVE
C           5    VERY LARGE AZIMUTH
C           6    KKT FAILURE
C