2. Running livedata on lyra
Its faster to run livedata on lyra, so if you are not processing in
real time, this might be a better option. All the above steps apply,
except the data will have to be ftp'd from arthur to lyra, as lyra
cannot see arthurs disks at this stage.
Remember to still delete the aips++.log file
You will need to tell lyra where aips++ is: source
Thats about it, just run livedata as above.
To run gridzilla on either lyra or oddjob just type gridzilla
If you are currently running livedata on oddjob, then you may have to
run gridzilla on oddjob as well, as I'm not sure if they both use the
Once in gridzilla, set the 'search path' to where the sdf
Change the Beam FWHM to 12.0 arcmin
Change the kernal FWHM to 12.0 arcmin
click the 'autosize' button if you don't know where your cube
Use the mouse to highlight all the sdfits files you want to
Change the output FITS file name, and check the output FITS
directory (don't want to write it to home!)
Its a good idea to watch the sdf files load into the gridder (the
first thing the gridder will do), as sometimes there is a problem and
you can pick it up straight away.
Concatenating the cubelets from gridzilla: cubecat & build_cube.csh
After gridding you will be left with 20 or so 'cubelets' which need to
be concatenated. The aips++ routine cubecat is quite
unreliable, so try if you like. But build_cube.csh is
reccommended for general use.
At either oddjob or lyra prompt, type cubecat
Press the 'select input' button, and highlight the cubelets to
Leave the processing options as default unless you want to
hanning smooth or compress the output cube
Check the output directory and output name
The cubelets can be deleted after the big cube is made.
This routine is stored in /home/multi/bin
At either oddjob or lyra prompt, type
/home/multi/bin/build_cube.csh <cube name>, where the cube name
is the stem of the cube name, before the _001 etc assigned by
gridzilla. Lots of .mir cublets will be left once this has finished,
which can then be deleted.
Continuum subtraction: polycon
This is done to the merged miriad cube. There are 2 versions, both
kept in /home/multi/bin.
For SUNs, its called polycon_sparc
For linux pcs, its called new_polycon
To run, type
/home/multi/bin/new_polycon in=< cube name>.mir out=< cube
It takes 10-20 mins to complete, depending on the speed of your computer.
If any of the aips++ routines give funny errors or won't run, firstly
delete the aips++.log file and try again, then get a new xterm and try