This recipe processes SCAN data with data from an existing map added to the input timeseries. Raw
data for each observation are passed to the map maker which are processed to produce an
image, which is then calibrated. The individual images are coadded using inverse-variance
The user must provide the name of a template input map from which a fake map is created with the
pixel bounds which match those of the map created with SCUBA-2 data alone. The input map
may be shifted on the sky relative to its nominal centre position to avoid overlap with
sources in the SCUBA-2 data, and may be regridded to match the pixel size of the output
Alternatively, the recipe can optionally create a Gaussian of a given FWHM and unit amplitude,
though only at the map centre (in pixel coordinates).
For large amounts of data this recipe will spend a long time not updating the ORAC-DR output.
Check to see that makemap is still processing by running top or ps.
Alternative configuration parameters for the iterative map-maker may be specified using the recipe
parameters outlined below.
Available Parameters :
The following parameters can be set
via the -recpars option:
FWHM in arcsec of Gaussian to use as
input map. Only used if FAKEMAP_MAP is unspecified.
the map to add to the raw timeseries. The file must be an NDF and exist in the current
working directory or $ORAC_DATA_OUT.
The value by which to
scale the input map before adding to the timeseries. Default is 1.0 (no scaling). Equivalent
of the makemap parameter fakescale.
A flag to denote whether
the fake map should be regridded to the same pixel scale as the output map. Default is 0
RA, Dec offsets in arcsec which specify how much the map
coordinates should be adjusted before adding to the map. If only one value is given, the
same will be used for both axes. Default is 0,0 (no shift).
of a config file for use with the SMURF makemap task. The file must exist in the current
working directory, $MAKEMAP_CONFIG_DIR or $ORAC_DATA_OUT.
Copyright © 2014 University ofBritish Columbia and the Science & Technology Facilities Council