bank_ftxt

         FTxT   Generic Fitter Track bank.  One for each fitted track
         ============================================================
 
    Contact:  D. L. Wark, Oxford.
 
    Revision History:-
    ================
 
    2.07  N. West     First version.  Derived from part of the FT bank.
    5.02  N. West     Fix up documentation: No FT*V now have extensions to FTXV.
 

 
Description
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    One bank generated for each fitted event track by the relevant fitter.
Each type of fitter produces its own type of FTxT bank, for example, the time
fitter produces an FTTT bank.  The first part of the track bank for all
fitters is the same, and it is this common part that is described here.  If a
fitter produces further words then an entry will appear in this list:-

 
Reference Links
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    None.
 
 
Structural Links
----------------
 
    None.
 
 
Status Bits
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Note: Any status bit parameters are defined to work with bit functions such as
      IAND and BTEST.
 
 
Data Words
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    Data types: B(bit), I, F, D(double), H(hollerith 4 char)
 
 +1  F KFTXT_U      Fitted X direction cosine.
 +2  F KFTXT_V      Fitted Y direction cosine.
 +3  F KFTXT_W      Fitted Z direction cosine.
 
Only the above words are common to all fitters. However, most fitters will
provide error estimates on these fitted quantities.  Unless correlations are
being taken into account, it is recommended that fitters follow this format:-
 
 +4  F KFTXT_DU     Error on fitted U.
 +5  F KFTXT_DV     Error on fitted V.
 +6  F KFTXT_DW     Error on fitted W.
 
 
Notes
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1)  Only fitters that produce track information create this bank.