Convert a CASA visibility file (MS) into an ALMA Science Data Model
Keyword arguments:
vis -- MS name,
default: none
asdm -- Name of output ASDM file (directory),
default: none; example: asdm='ExecBlock3'
datacolumn -- specifies which of the MS data columns (data,
corrected, or model) should be used as the
visibilities in the ASDM, default: data
archiveid -- the X0 in uid://X0/X1/X<running>
default: "S0"
rangeid -- the X1 in uid://X0/X1/X<running>
default: "X1"
subscanduration -- maximum duration of a subscan in the output ASDM
default: "24h"
sbduration -- maximum duration of a scheduling block in the output ASDM
default: "2700s"
apcorrected -- If true, the data in column datacolumn will be marked
as having atmospheric phase correction, default: True
verbose -- produce log output, default: True
showversion -- report the version of the ASDM class set,
default: True
useversion -- Selects the version of MS2asdm to be used (\'v3\' (default) or \'v2\' (version before May 2011))
default: v3
exportasdm(vis='ngc4826.ms', asdm='uid___S021_X1418_X1',
datacolumn='corrected', archiveid='S021', rangeid='X1418',
verbose=False)
will produce an ASDM named 'uid___S021_X1418_X1' using the
datacolumn 'corrected' in the MS 'ngc4826.ms' with minimal
log output.
Note concerning ALMA data: exportasdm presently is not able to export
from MSs containing WVR data. If you attempt to export such an MS, you
will receive an error message saying that you can only export data of
processor type "CORRELATOR". It will also give you the list of SPWs
which contain CORRELATOR data. You will then have to split out these
SPWs using the task "split" and run exportasdm on the resulting MS. 
1.8.0