<font face="Verdana, Arial, Helvetica" size="2">Eric Greisen updated #12908<br />
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Fring passing failed solutions as good<br />
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<div style="margin-left: 40px;">Ticket ID: 12908</div>
<div style="margin-left: 40px;">URL: <a href="https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/12908">https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/12908</a></div>
<div style="margin-left: 40px;">Name: Jeffrey Hodgson</div>
<div style="margin-left: 40px;">Email address: <a href="mailto:jhodgson@mpifr-bonn.mpg.de">jhodgson@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): -- Unassigned --</div>
<div style="margin-left: 40px;">Type: Issue</div>
<div style="margin-left: 40px;">Status: Response Overdue</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: 02 November 2018 03:08 AM</div>
<div style="margin-left: 40px;">Updated: 19 November 2018 04:56 PM</div>
<div style="margin-left: 40px;">Reply due: 21 November 2018 07:00 AM (1d 14h 3m)</div>
<div style="margin-left: 40px;">Resolution due: 15 August 2021 12:00 AM (999d 7h 3m)</div>
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I don't have any good suggestions. It is curious that<br />it reports exactly 1/3 of the possible solutions as having<br />worked. Is it possible that it is failing on 2/3 of the<br />antennas and working at some S/N ratio on the other<br />1/3? Have you tried longer integration times? Have you<br />tried not fitting for rate (DPARM(9) 1)?<br /><br />I am told that some VLB data sets are so bad that CALIB<br />with L1R and phase only is all that can be done.<br /><br />With large failure rates like this there is no point in continuing<br />unless you can get that fixed. I would be interested in what<br />the SN table looks like after this FRING. CLCAL will by default<br />pass CL entries for failed solutions which is what I guess<br />you mean by passed.<br /><br />Eric Greisen<br />
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