== Notes for Scantable vs. Measurement Set Discussion ==

=== scantable issues ===
 * most serious
   * polarization type - global: only one type per scantable - not real problem...
   * currently scantable assume some globals (NIF, etc) - but scantable intrinsically can handle...
   * difference in spw - IF: can be put in aux. table in MS? (SPECTRAL WINDOW table have 'freq group')
 * others
   * scanno renumbering - (mostly) reader issue
   * antenna dish diameter info gets lost - reader issue
   * POINTING sub-table truncation
   * weather info- reader issue
   * the issues presented can be resolved by exntend current scantable data format
   * data size?- even we copy some missing meta data, scantable probably be much smaller in size
    
=== To keep scantable ===
   * direct MS->scantable filler + scantable -> MS filler (~3+1mon.) - Tekeshi
   * adding more meta-data in scantable
   * Malte and Takeshi will work on a new scantable format proposal (include more meta data)
   * plotter issue? 
     * if we stay on scantable, we can still write out to MS to use plotms
     * still need to add SD specific functionality