<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear AIPS helpdesk staff,<div class=""> <div class="">Hope this email finds you well. </div><div class="">I am new to use AIPS to do calibration and now I need to flag the bad data using uvflg.</div><div class="">But I am confused by the example in the section 2.2 error recognition of AIPS guidelines, which said the bad data is antenna 11, IF 2, and stokes R and the example of flag commands are as below : </div><div class=""><span style="color: rgb(255, 153, 51); font-family: Courier; font-size: 16px; font-weight: 700; line-height: 24px; orphans: 2; text-align: center; widows: 2; background-color: rgb(255, 255, 255);" class="">"antenna 11 0</span></div><inp style="background-color: rgb(255, 255, 255); font-family: Courier; color: rgb(255, 153, 51); font-size: 16px; text-align: center; font-weight: 700; line-height: 24px; orphans: 2; widows: 2;" class="">timerang 0 10 20 20 0 14 0<br class="">stokes 'rr'<br class="">bif 2<br class="">eif 2<br class=""></inp><span style="font-family: Arial, Helvetica; font-size: 14px; font-weight: 700; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""></span><inp style="background-color: rgb(255, 255, 255); font-family: Courier; color: rgb(255, 153, 51); font-size: 16px; text-align: center; font-weight: 700; line-height: 24px; orphans: 2; widows: 2;" class="">inp </inp><span style="font-family: Arial, Helvetica; font-size: 14px; font-weight: 700; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">please always check your input</span><br style="font-family: Arial, Helvetica; font-size: 14px; font-weight: 700; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""><inp style="background-color: rgb(255, 255, 255); font-family: Courier; color: rgb(255, 153, 51); font-size: 16px; text-align: center; font-weight: 700; line-height: 24px; orphans: 2; widows: 2;" class="">go"</inp><div class=""><div style="orphans: 2; text-align: center; widows: 2;" class=""><font color="#ff9933" face="Courier" size="3" class=""><span style="line-height: 24px; background-color: rgb(255, 255, 255);" class=""><b class=""><br class=""></b></span></font></div><div class="">I am wondering why the stokes were being set to ‘rr’ but the bad stokes is R? </div><div class="">So how can I set my flag commands if my bad data are in stokes R, as shown in the figure? </div><div class=""><img apple-inline="yes" id="A19020BF-7903-4E25-BD3B-3AE86CB4867C" height="615" width="675" apple-width="yes" apple-height="yes" src="cid:29A18D79-5526-4618-A9D2-C83D8E2F90A4@mpifr-bonn.mpg.de" class=""></div><div class=""><br class=""></div><div class="">Thank you very much in advance. </div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Aiyuan</div><div class=""><br class=""></div></div></div></body></html>