<font face="Verdana, Arial, Helvetica" size="2">the frequency configurations from the AIPS ASDMList and the CASA listadm<br />
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<div style="margin-left: 40px;">Ticket ID: 16786</div>
<div style="margin-left: 40px;">URL: <a href="https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/16786">https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/16786</a></div>
<div style="margin-left: 40px;">Name: Aiyuan Yang</div>
<div style="margin-left: 40px;">Email address: <a href="mailto:ayyang@mpifr-bonn.mpg.de">ayyang@mpifr-bonn.mpg.de</a></div>
<div style="margin-left: 40px;">Creator: User</div>
<div style="margin-left: 40px;">Department: AIPS Data Reduction</div>
<div style="margin-left: 40px;">Staff (Owner): Eric Greisen</div>
<div style="margin-left: 40px;">Type: Issue</div>
<div style="margin-left: 40px;">Status: Open</div>
<div style="margin-left: 40px;">Priority: Default</div>
<div style="margin-left: 40px;">SLA: NRAO E2E</div>
<div style="margin-left: 40px;">Template group: Default</div>
<div style="margin-left: 40px;">Created: 21 August 2020 09:30 AM</div>
<div style="margin-left: 40px;">Updated: 22 August 2020 10:00 AM</div>
<div style="margin-left: 40px;">Reply due: 26 August 2020 12:00 AM (3d 14h 0m)</div>
<div style="margin-left: 40px;">Resolution due: 18 May 2023 12:00 AM (998d 14h 0m)</div>
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Hi Eric, <br />
Many thanks for your suggestions. <br />
<br />
The two configurations are identical and from one dataset. <br />
The first one used in the scan from 1-508 and the second one used scan after 508. <br />
Please find the details in the attached file. <br />
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What could be the possible reason that the data show two identical configurations? <br />
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In this case, how could we run the DBCON for one dataset to combine the two same configurations?<br />
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Thanks a lot!<br />
Have a nice weekend~<br />
<br />
Cheers,<br />
Aiyuan<br />
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> On 22 Aug 2020, at 05:46, Eric Greisen wrote:<br />
> <br />
> I cannot know what CASA is doing. BDFList shows what is actually in the file. There appear to be two configurations, but you did not show enough for me to see if they are identical passed the first 2 spectral windows. In AIPS, you should run BDF2AIPS on each to separate files. If they are really identical in frequency structure but presumably at different observation times, you can use DBCON to make them into one.<br />
> <br />
> Eric Greisen<br />
> <br />
> <br />
> <br />
> <br />
> <br />
> Ticket Details<br />
> Ticket ID: 16786<br />
> Department: AIPS Data Reduction<br />
> Type: Issue<br />
> Status: Open<br />
> Priority: Default<br />
> <br />
> Helpdesk: <a href="https://help.nrao.edu/index.php?" target="_blank">https://help.nrao.edu/index.php?</a>
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