A reference page for items commonly found in MSes but not described by the MS definition

Obviously everything here is optional. However, some things are expected in certain situations, and often the presence of one requires other optional columns to be present. Many of these are lumped under the term "scratch columns".

MAIN table

MODEL_DATA + CORRECTED_DATA

Complex data type, same shape as DATA (or LAG_DATA?)

IMAGING_WEIGHT

(Float) This seems to have a unique shape - it's a Vector with length equal to the number of channels (or lags?). I'm not sure why IMAGING_WEIGHT is allowed to vary with channel but not polarization.

SORTED_TABLE

See MSIterNoNeedToKnow for why, if you approach things correctly, you can ignore whether or not SORTED_TABLE is present.

WEATHER table

NS_WX_STATION_ID + NS_WX_STATION_POS

These appear in MSes from the EVLA. (Currently split drops them, though.) Does anyone have more info on them?

-- RobReid - 2010-03-23
Topic revision: r3 - 2012-04-24, PatrickMurphy
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding NRAO Public Wiki? Send feedback