Friday, March 26, 2010

BPLOT is a really cool task


I recently learned about a task in AIPS which is very good for assessing bandpass stability---BPLOT. If you have multiple bandpass solutions, it will plot each one, stacking them one on top of each other as a time sequence. To the left is an example plot from BPLOT. Try it, you'll like it!


5 comments:

Linda said...
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Anonymous said...

Is there any task using which I can plot phase vs time for the program source for each antenna? We use snplt to check phases of calibration sources but after the data is split, there are no solution tables and so snplt cannot be used.

Adrienne said...

Anonymous, you should be able to use UVPLT or WIPER to look at your SPLIT data. I think you want to set bparm = 11, 2, 0 to get time vs. phase. You can also set the antenna.

For lots of points, I've found WIPER to be faster.

Laura said...

I personally like VPLOT, which will plot amp or phase vs time for each baseline. You can choose to overplot IFs/Correlations, or you can iterate over them.

Anonymous said...

Thanks. That was helpful.