<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
</head>
<body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; ">
<div>Hi all</div>
<div><br>
</div>
<div>
<div>I've come across a bit of an anomaly in the psrfits files being written by the Parkes DFBs. When we first defined the psrfits format, we had STT_DATE and STT_TIME in the main header. Then in V2.8 (Feb 2007) these were removed from the definition and DATE_OBS
was added for compatibility with FITS standards. Ever since then STT_DATE and STT_OBS have not been in the header template. However, the PDFBs have continued to write these lines in the main header (as well as DATE_OBS). </div>
</div>
<div><br>
</div>
<div>I propose that we cease writing STT_DATE and STT_TIME with the Parkes DFBs. They are redundant and furthermore confusing since the the time differs slightly from that in DATE_OBS. </div>
<div><br>
</div>
<div>I think this is a Parkes-only issue, but if anyone feels that this is a bad move, please let me know. I'll wait a week before asking Warwick to make the changes. </div>
<div><br>
</div>
<div>Regards</div>
<div> Dick</div>
</body>
</html>