<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#ffffff">
Hi Ewout,<br>
<br>
So SDSS stars in refcat only covers half of SA107 it seems. The
refcat was not updated for SDSS DR7. From total coverage plots at
<a class="moz-txt-link-freetext" href="http://www.sdss.org/dr7/coverage/index.html">http://www.sdss.org/dr7/coverage/index.html</a> it is hard to tell if it
covers more SA107. You can quickly check by selecting proper ra,dec
in the SDSS DR7 catalog server, CAS.<br>
<br>
Best wishes, Gijs <br>
<br>
Op 25-5-2011 15:56, Ewout M. Helmich schreef:
<blockquote cite="mid:4DDD0A77.6080709@astro.rug.nl" type="cite">Hi,
<br>
<br>
Here are two plots for SA107:
<br>
<br>
1) Overlay of the pointings (this case g') we used on the night of
2 May and our photometric reference catalog.
<br>
2) The refcat at SA107, with origins of sources specified.
<br>
<br>
Pointing could be slightly better, but we may be limited by the
choice of guide star, it's not bad as it is. There is a gap over
two CCD at the right edge of the plot; this is probably the result
of the layout of the WFC@INT mosaic.
<br>
<br>
Ewout
<br>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Comm2011 mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Comm2011@astro-wise.org">Comm2011@astro-wise.org</a>
<a class="moz-txt-link-freetext" href="http://listman.astro-wise.org/mailman/listinfo/comm2011">http://listman.astro-wise.org/mailman/listinfo/comm2011</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
--------------------------------------------------------------------
|dr Gijs Verdoes Kleijn | astronomer |
|e-mail: <a class="moz-txt-link-abbreviated" href="mailto:verdoes@astro.rug.nl">verdoes@astro.rug.nl</a> | OmegaCEN / Kapteyn Institute / |
|www: <a class="moz-txt-link-abbreviated" href="http://www.astro.rug.nl/~verdoes">www.astro.rug.nl/~verdoes</a> | Target |
|tel: +31-50-3638326 | University of Groningen |
|mobile: +31-654658050 | postal address: |
| | Kapteyn Astronomical Institute |
| | Postbus 800, 9700 AV, Groningen|
| | The Netherlands |
--------------------------------------------------------------------</pre>
</body>
</html>