Livedata and Gridzilla - Reducing rpfits to mscals, then gridding
To get livedata to run, the first thing we have to do is check the
environment variables KARMAROOT and KARMABASE have been set to
the working version of karma at
This can be done by typing
To set or change their current settings type:
setenv KARMAROOT /home/rms/karma
setenv KARMABASE /home/rms/karma
You can then start livedata.
- Type livedata
Note - do not run it in the background (i.e. do not use the &),
livedata will not work if you do this.
- You can now move the windows around a
bit. (Minimise the two multibeamview windows, as these will not be used
- Now click the Monitor Output Button on the Livedata GUI, this
will switch it off, otherwise Livedata will run EXTREMELY slowly.
- Next we
have to set-up the directories for reading and writing the data.
Under Read Directory type
Then click Update.
A list of the .mbf (raw data files) currently available on ARTHUR
should appear. The file names all start with the observation time coded as
ARTHUR usually only holds data from the last few days. If the observations
are older than this they should be found on oddjob's disc in a directory under
- Select the mscal directory by typing
/scratch/oddjob_1/mscals into the Write Directory box.
If you wish, you could create a
sub directory in this directory called 'p74' or 'virgodeep' and set this
as the directory, depending on which data you are reducing.
- We now have to select which .mbf's we want to reduce.
If Chris has cleared out all the old data
(i.e. if there is just data with 00-03-30_......mbf), then we can just
select all data in the directory - just click on the Auto-Queue button.
Otherwise, highlight the files you want to reduce (they are prefixed with
the date of observation, so you should be able to work out which ones
you've just made), then click the Queue Selection button to queue the
files for reduction. Even if you've clicked the Auto-queue button, you
MAY have to manually queue the first file.
- You can then start livedata reducing by clicking the Start button.
The list of reduced files should gradually appear in the Processed files
list. If it hangs, just shut everything down and start again. Note that the
two 'Multibeambiew' windows will not close when you shut down livedata - you
will have to close these down manually.
Note also that during reduction you may occasionally get an error - something
like TAC leap table out of date, regenerate or something similar,
this is normal. You may also get a few
Ignoring this scan as Tsys = ..., these are also common.
Once you have the reduced mscals for your cube, you can grid them by typing :
And that should be it!
DCZ, JAH Mar 30 2000
Last modified: Wed Jun 14 17:32:28 BST 2000