Flag Antenna/Channels

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3.6.1 Flag Antenna/Channels

The following commands give the results shown in Figure 3.8:

  default{’plotxy’)
  plotxy(’ngc5921.ms’,’channel’,iteration=’antenna’,subplot=311)
  default(’flagdata2’)
  flagdata2(vis=’ngc5921.ms’,selectdata=True, manualflag=True, antenna=’0’,spw=’0:10~15’)
  default plotxy
  plotxy(’ngc5921.ms’,’channel’,iteration=’antenna’,subplot=311)

Figure 3.8: tflagdata: Example showing before and after displays using a selection of one antenna and a range of channels. Note that each invocation of the flagdata2 task represents a cumulative selection, i.e., running antenna=’0’ will flag all data with antenna 0, while antenna=’0’, spw=’0:10 15’ will flag only those channels on antenna 0.

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   3.6.1.1 Manual flagging and clipping in flagdata
   3.6.1.2 Flagging the beginning of scans
   3.6.1.3 Flagging shadowed data with mode ’shadow’
   3.6.1.4 Autoflagging.

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