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atcafiller - Constructor

	Package	atnf
	Module	atca
	Tool	atcafiller

Construct the ATCA filler tool

Synopsis
atcafiller(msname, filenames, options, shadow)

Arguments

msname		Filename for MeasurementSet to create
		Allowed:	String
		Default:	''
filenames		Existing RPFITS files to read; wild cards accepted, don't use commas
		Allowed:	String or Vector of Strings
		Default:	''
options		birdie, reweight, noxycorr,compress,fastmosaic,hires
		Allowed:	Vector of Strings
		Default:	''
shadow		dish size for flagging shadowed data
		Allowed:	Float
		Default:	22.0

Returns
atcafiller tool

Description
This constructor just creates the filler tool, it does not do any actual filling yet.

In the filenames argument commas are not allowed because of the wildcard capability.

The options argument allows for special processing options during the filling process.

birdie

remove self generated birdies in 128 MHz data by deleting every other channel and the edge channels

reweight

suppress ringing of interference spikes by reweighting the lag spectrum for minimum spectral sidelobe response

noxycorr

do not apply the xyphase correction using the noise cal xy phase measurements (use if you know there was a problem with the measurements)

compress

Compress the data, model, corrected data and imaging weight columns (may reduce dynamic range)

fastmosaic

Produce a MeasurementSet with small tiles to optimize I/O for observations with a large number of pointings and a short time (a few integrations) on each pointing. Failing to use this options for such data may cause very inefficient access, especially for continuum data (10-100 times slower)

hires

For data taken in binning mode: set the TIME_CENTROID column to the center of each bin (normally center of integration interval). The TIME column is unaffected. TIME_CENTROID will no longer be in time order for dual frequency mode.

Set the shadow parameter to zero to keep shadowed data. Set it slightly larger than the dish size (22m) if you don't trust data that is almost (geometrically) shadowed.

Example

- rpf := atcafiller('myms',
  "/data/RPFITS/1999-01-01_0101.C999 /data/RPFITS/1999-01-01_0202.C999",
  "birdie reweight", 22.5, F);