<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-1101</journal-id>
<journal-title><![CDATA[Revista mexicana de astronomía y astrofísica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. astron. astrofis]]></abbrev-journal-title>
<issn>0185-1101</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Astronomía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-11012007000200009</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Investigation of the 1-m telescope guiding at the OAN-Tonantzintla]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Voitsekhovich]]></surname>
<given-names><![CDATA[V. V.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orlov]]></surname>
<given-names><![CDATA[V. G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garfias]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Astronomía ]]></institution>
<addr-line><![CDATA[México D. F.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2007</year>
</pub-date>
<volume>43</volume>
<numero>2</numero>
<fpage>309</fpage>
<lpage>314</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-11012007000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-11012007000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-11012007000200009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se presentan los resultados de investigaciones experimentales del guiado del telescopio 1-m en el Observatorio Astronómico Nacional (OAN), Tonantzintla, México. Las observaciones se llevaron a cabo con el instrumento Dragon, el cual permite grabar conjuntos de imágenes de corta exposición. El análisis de los datos obtenidos ha mostrado que hay 3 tipos de errores de guiado en el telescopio: tendencia lineal, vibraciones del telescopio y saltos de telescopio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The results of experimental investigations of the 1-m telescope guiding at the Observatorio Astronómico Nacional (OAN), Tonantzintla, México are presented. The observations have been carried out with the Dragon instrument which allows to record sets of short-exposure images. The analysis of the data obtained has shown that there are three types of telescope guiding errors: linear trend, telescope vibrations, and telescope jumps.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Instrumentation]]></kwd>
<kwd lng="en"><![CDATA[miscellaneous-telescopes]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Revista mexicana de astronom&iacute;a y astrof&iacute;sica</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Investigation of the 1&#150;m telescope guiding at the OAN&#150;Tonantzintla</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>V. V. Voitsekhovich, V. G. Orlov, L. J. S&aacute;nchez, and F. Garfias</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Instituto de Astronom&iacute;a, Universidad Nacional Aut&oacute;noma de M&eacute;xico, M&eacute;xico</i></font></p>     <p align="justify"><font face="verdana" size="2"><i>V. V. Voitsekhovich, V. G. Orlov, L. J. S&aacute;nchez, and F. Garfias: Instituto de Astronom&iacute;a, Universidad Nacional Aut&oacute;noma de M&eacute;xico, Apdo. Postal 70&#150;264, 04510 M&eacute;xico, D. F., M&eacute;xico <a href="mailto:voisteko@astroscu.unam.mx">(voisteko@astroscu.unam.mx,</a> <a href="mailto:orlov@astroscu.unam.mx">orlov@astroscu.unam.mx</a>, <a href="mailto:leonardo@astroscu.unam.mx">leonardo@astroscu.unam.mx</a>, <a href="mailto:fergar@astroscu.unam.mx">fergar@astroscu.unam.mx)</a>.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Received 2007 March 08    ]]></body>
<body><![CDATA[<br>   Accepted 2007 June 18</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Se presentan los resultados de investigaciones experimentales del guiado del telescopio 1&#150;m en el Observatorio Astron&oacute;mico Nacional (OAN), Tonantzintla, M&eacute;xico. Las observaciones se llevaron a cabo con el instrumento Dragon, el cual permite grabar conjuntos de im&aacute;genes de corta exposici&oacute;n. El an&aacute;lisis de los datos obtenidos ha mostrado que hay 3 tipos de errores de guiado en el telescopio: tendencia lineal, vibraciones del telescopio y saltos de telescopio.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The results of experimental investigations of the 1&#150;m telescope guiding at the Observatorio Astron&oacute;mico Nacional (OAN), Tonantzintla, M&eacute;xico are presented. The observations have been carried out with the Dragon instrument which allows to record sets of short&#150;exposure images. The analysis of the data obtained has shown that there are three types of telescope guiding errors: linear trend, telescope vibrations, and telescope jumps.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Key Words:</b> Instrumentation: miscellaneous<font face="verdana" size="2"><font face="verdana" size="2"><font face="verdana" size="2"><font face="verdana" size="2">&#151;</font></font></font></font>telescopes</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmaa/v43n2/v43n2a9.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgement</b></font></p>     <p align="justify"><font face="verdana" size="2">This work was supported by Direcci&oacute;n General de Asuntos del Personal Acad&eacute;mico (Universidad Nacional Aut&oacute;noma de M&eacute;xico, M&eacute;xico) under project IN107906&#150;2 (PAPIIT)</font></p>     <p align="justify"><font face="verdana" size="2">The authors are grateful to Arturo Iriarte (Instituto de Astronom&iacute;a, Universidad Nacional Aut&oacute;noma de M&eacute;xico, M&eacute;xico) for help with the installation of the Dragon instrument at the telescope.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">Altarac, S., Berlioz&#150;Arthaud, P., Thiebaut, R., Foy, R., Balega, Y. Y., Dainty, J. C., &amp; Fuensalida, J. J. 2001, MNRAS, 322, 141</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422422&pid=S0185-1101200700020000900001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Balega, I. I, Balega, Y. Y., Vasyuk, V. A., &amp; Orlov, V. G. 1990, Bull. Special Astrophys. Obs., 29, 65</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422423&pid=S0185-1101200700020000900002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Orlov, V. G., Voitsekhovich, V. V., S&aacute;nchez, L. J., &amp; Garfias, F. 2007, RevMexAA, 43, 137</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422424&pid=S0185-1101200700020000900003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Thomas, S., Fusco, T., Tokovinin, A., Nicolle, M., Michau V., &amp; Rousset, G. 2006, MNRAS, 371, 323</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422425&pid=S0185-1101200700020000900004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Voitsekhovich, V. V. 1988, PhD Thesis, Space Reserch Institute, Moscow, Russia</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422426&pid=S0185-1101200700020000900005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">Voitsekhovich,   V.   V.,   Orlov,   V.   G.,   S&aacute;nchez,   L.   J., Garfias, F., &amp; Benitez, R. 2005, RevMexAA, 41, 399</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=7422427&pid=S0185-1101200700020000900006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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