### REDUCE_SCAN_ISOLATED_SOURCE

Process SCAN data an isolated source

#### Description:

This is a recipe for processing SCAN data for a single bright, isolated source at the tracking position.

Raw data are passed to the map maker which are processed to produce a Frame image, which is then calibrated and displayed. A new Group image is created and displayed. The noise properties of the new Group image are calculated and written to a log file, log.noise.

This recipe will attempt to register the individual images (i.e. align the bright central source in all observations) before coadding. If the source isn’ t detected well enough to do this it will continue on, with a warning in the log.

#### Notes:

• The current noise level is stored in log.noise.

• 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 :

##### MAKEMAP_CONFIG
Name 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.

#### Display

The Frame image is displayed in Gaia window 1. The Group image is displayed in Gaia window 2; its variance is displayed in window 3.