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<b> Ticket Information: </b>
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View this ticket online: <a href="https://help.nrao.edu/app#app.tickets,t:39520" title="(#)" style="color: #0065A3; font-family: Helvetica, Arial, sans-serif; font-weight: normal; padding: 0; margin: 0; text-align: left; line-height: 1.3; text-decoration: underline;">https://help.nrao.edu/app#app.tickets,t:39520</a>
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Jongho Park <jparkastro@khu.ac.kr> </td>
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Resolved
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Mac OS13
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The parallactic angle corrections in AIPS are implemented in subroutines DATPOL (for circular after label 260) and DVHROT for linear (called from DATPOL). These are located in $TST/APL/...
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<!-- DP_MESSAGE_BEGIN --><div dir="ltr" lang="en" name="dp_message_182528_begin" class="dp_message_182528_begin"><div>The parallactic angle corrections in AIPS are implemented in subroutines DATPOL (for circular after label 260) and DVHROT for linear (called from DATPOL). These are located in $TST/APL/SUB/NOTST. They are consistent with EVLA Memos 207 and 219, also referenced in AIPS Memo 125. Note that the parallactic angles enter in the sum and difference of the two antenna’s parallactic angle. So I do not know what your nomenclature above even means. LPCAL is not a primary task in AIPS and I cannot even assert that it is correct.</div><div><div class="dp-signature-start">Eric Greisen</div>
<div>NRAO AIPS Manager</div></div></div><!-- DP_MESSAGE_END -->
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