Standard Names For LISTs

These are the same as those used in ASTERIX. New LISTs may be defined for a particular instrument as required and software should be sufficiently flexible to cater for this (e.g. if it fails to find a standard list the user should be asked to nominate one).

X_RAW           - x offset from instrument axis in pixels.
                  LIST type usually _WORD. 
Y_RAW           - y offset from instrument axis in pixels.
                  LIST type usually _WORD. 
X_CORR, Y_CORR  - x,y positions after instrumental
                  corrections. 
PULSE_HEIGHT_CH - instrument pulse height channel number.
                  LIST type usually _UBYTE, _UWORD or
                  _INTEGER, depending upon number of
                  channels. 
PULSE_HEIGHT    - this may be used for corrected p.h. values.
ENERGY          - energy in absolute units (e.g. keV). 
RAW_TIMETAG     - collection time (usually referenced to
                  observation start) in seconds. LIST type
                  usually _REAL. 
TIMETAG         - used in place of RAW_TIMETAG if any
                  corrections have been applied.
DETECTOR_ID     - detector identification. LIST type usually
                  _UBYTE. 
QUALITY         - data quality list. Applies where quality of 
                  individual events is supplied by the instrument. 
                  Note that this is a LIST, containing its values 
                  in a DATA_ARRAY, its structure therefore differs
                  from the QUALITY component in binned datasets,
                  but the quality values should conform to the
                  same convention, as defined in section 2.2.2.
                  LIST type _UBYTE.