;
;==========================================================================
;
; FILE: ufthresholdname.pro
;
; USAGE:  result = UFthresholdname(ufbuf, field)
;         ARGUMENTS  ufbuf  Buffer of UF words for a dwell of radar data
;                    field  Logical number of the data field
;
; ABSTRACT: Return the 2 character ASCII name of the field used for 
;           thresholding on the Nth field in the UF buffer
;
; AUTHOR:  I. Jeff Caylor
;          Science Systems and Applications, Inc.
;          5900 Princess Garden Parkway, Suite 300
;          Lanham, MD  20706
;
;     at:  NASA Goddard Space Flight Center
;          Code 912
;          Greenbelt, MD 20771
;          Voice: (301) 286-3767
;          Fax:   (301) 286-1762
;          Email: jeff.caylor@gsfc.nasa.gov
;
; CREATED: 7 April 1995
;
; MODIFIED:
;
;==========================================================================
;

;
; Return the threshold field name in ASCII for the Nth field
; Error = -1
;
FUNCTION UFthresholdname, dwell, n
  d = UFfieldhdr(dwell, n)
  IF (d EQ -1) THEN  BEGIN
    RETURN, -1
  ENDIF
  RETURN, UF_tostr(dwell(d + 13), 1)
END