[daip] Questions about AIPS Tasks

[Eric Greisen]

Christian Leipski writes:

 > 1)
 > I've got data from the VLA A- AND B-Array (6 cm, of the same source and
 > individually calibrated, of
 > course) and would like to concatenate this two files. If I do this with DBCON
 > and them make a image using MAPPR, AIPS find all the visibilities but restores
 > the beam only on the basis of B-Array data (with a beam of roughly 1.3
 > x 1.3 arcsec). What task do I have to use to merge the uv datasets
 > properly ?

    MAPPR is a simplified interface to IMAGR.  Do a TGET IMAGR and see
if it has set SUBARRAY to 1.  The DBCON'd data are probably in two
subarrays and both must be included by the IMAGR.
 > 
 > 
 > 2)
 > After I loaded the data of another file to AIPS, I can't run TVFLG on
 > this dataset.
 > Having a look on the scan summary (see attachement) you see that the scans
 > numbered 1 to 11 are the same as approximately 43 to ... .
 > Thus, the data are partly the same and I have to delete the scans 1 to 11.
 > Which task should I use to delete certain SCANS??
 > 
 > 
 > Thanks in advance
 > 
 > Best regards
 > 
 > Christian
 > 
 >