Changes between Version 1 and Version 2 of ScantableVsMsDiscussionNotes


Ignore:
Timestamp:
08/17/10 01:51:47 (12 years ago)
Author:
TakTsutsumi
Comment:

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  • ScantableVsMsDiscussionNotes

    v1 v2  
    11
    22== Notes for Scantable vs. Measurement Set Discussion ==
     3
     4=== scantable issues ===
     5 * most serious
     6   * polarization type - global: only one type per scantable - not real problem...
     7   * currently scantable assume some globals (NIF, etc) - but scantable intrinsically can handle...
     8   * difference in spw - IF: can be put in aux. table in MS? (SPECTRAL WINDOW table have 'freq group')
     9 * others
     10   * scanno renumbering - (mostly) reader issue
     11   * antenna dish diameter info gets lost - reader issue
     12   * POINTING sub-table truncation
     13   * weather info- reader issue
     14   * the issues presented can be resolved by exntend current scantable data format
     15   * data size?- even we copy some missing meta data, scantable probably be much smaller in size
     16   
     17=== To keep scantable ===
     18   * direct MS->scantable filler + scantable -> MS filler (~3+1mon.) - Tekeshi
     19   * adding more meta-data in scantable
     20   * Malte and Takeshi will work on a new scantable format proposal (include more meta data)
     21   * plotter issue?
     22     * if we stay on scantable, we can still write out to MS to use plotms
     23     * still need to add SD specific functionality
     24