Before you calibrate, you must prepare your data. This consists of loading, flagging, perhaps converting to ``channel-0'' datasets, and then splitting.
UVSPLIT | |
vis=multi.uvxy | The input dataset. |
select | Extra selection. |
For large spectral line data-sets, if disk space is low, it may be useful not to split off the program source. Rather you can split off the calibrators, determine the calibration tables from them, copy the calibration back to the multi-source file, and then image directly from the multi-source file. This way you avoid making a second copy of your program source data. For example, to avoid the source ``vela'' from being split off, use
UVSPLIT | |
vis=multi.uv | The input dataset. |
select=-source(vela) | Do not select vela data. |
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