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Interpreting the pipeline results (part II)

Final images

The pipeline will produce an image for each target source, for each observation that it identifies and is able to calibrate. The resulting images are available, either to download as FITS files, or to view using the Remote Visualisation System software (RVS).

Like the plot files, each image file have a name which uniquely describes it using the following scheme

source:freq-nchan-npol.restored.fits

or

source:freq-nchan-npol.image.fits

where source is the name of the target source. The segment following the colon (freq-nchan-npol-id) describes the observation (frequency, number of channels and number of polarisations, followed by a unique identifier).

If the image has been deconvolved (CLEANed) then the file will have the suffix .restored.fits, otherwise it will have the suffix .image.fits. The pipeline will not attempt to CLEAN images if they have insufficient UV coverage. For example the name 2139-4434:2378-14-4-s1.image.fits is an image of source 2139-4434 at a frequency 2378 MHz. The image has not been CLEANed.

An alternative to downloading the images is to view them using RVS. This is a visualisation package being developed at the ATNF which allows you to view images located on a remote server. RVS requires Java WebStart to be installed on your system. This should work reasonably straightforwardly in Internet Explorer but may require some setup for Unix/Linux machines. Contact Anil Chandra for more information.

Overview | Loading/Editing | Calibration | Imaging | Results 1 | Results 2 | Troubleshooting | Future

 

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