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<td valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong>novas.compat.nutation</strong></big></big></font></td
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<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
    
<tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><dl><dt><a name="-POINTER"><strong>POINTER</strong></a>(...)</dt></dl>
 <dl><dt><a name="-addressof"><strong>addressof</strong></a>(...)</dt><dd><tt><a href="#-addressof">addressof</a>(C&nbsp;instance)&nbsp;-&gt;&nbsp;integer<br>
Return&nbsp;the&nbsp;address&nbsp;of&nbsp;the&nbsp;C&nbsp;instance&nbsp;internal&nbsp;buffer</tt></dd></dl>
 <dl><dt><a name="-alignment"><strong>alignment</strong></a>(...)</dt><dd><tt><a href="#-alignment">alignment</a>(C&nbsp;type)&nbsp;-&gt;&nbsp;integer<br>
<a href="#-alignment">alignment</a>(C&nbsp;instance)&nbsp;-&gt;&nbsp;integer<br>
Return&nbsp;the&nbsp;alignment&nbsp;requirements&nbsp;of&nbsp;a&nbsp;C&nbsp;instance</tt></dd></dl>
 <dl><dt><a name="-byref"><strong>byref</strong></a>(...)</dt><dd><tt><a href="#-byref">byref</a>(C&nbsp;instance[,&nbsp;offset=0])&nbsp;-&gt;&nbsp;byref-object<br>
Return&nbsp;a&nbsp;pointer&nbsp;lookalike&nbsp;to&nbsp;a&nbsp;C&nbsp;instance,&nbsp;only&nbsp;usable<br>
as&nbsp;function&nbsp;argument</tt></dd></dl>
 <dl><dt><a name="-get_errno"><strong>get_errno</strong></a>(...)</dt></dl>
 <dl><dt><a name="-iau2000a"><strong>iau2000a</strong></a>(jd_high, jd_low)</dt><dd><tt>Computes&nbsp;the&nbsp;forced&nbsp;nutation&nbsp;of&nbsp;the&nbsp;non-rigid&nbsp;Earth&nbsp;based&nbsp;on&nbsp;the<br>
IAU&nbsp;2000A&nbsp;nutation&nbsp;model.<br>
&nbsp;<br>
Parameters<br>
----------<br>
jd_high&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;High-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
jd_low&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;Low-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
&nbsp;<br>
Returns<br>
-------<br>
(dpsi,&nbsp;deps)&nbsp;:&nbsp;tuple&nbsp;of&nbsp;floats<br>
&nbsp;&nbsp;&nbsp;&nbsp;Nutation&nbsp;(luni-solar&nbsp;+&nbsp;planetary)&nbsp;in&nbsp;(longitude,&nbsp;obliquity)&nbsp;in<br>
&nbsp;&nbsp;&nbsp;&nbsp;radians.<br>
&nbsp;<br>
Notes<br>
-----<br>
..&nbsp;[N1]&nbsp;The&nbsp;IAU&nbsp;2000A&nbsp;nutation&nbsp;model&nbsp;is&nbsp;MHB_2000&nbsp;without&nbsp;the&nbsp;free<br>
&nbsp;&nbsp;&nbsp;&nbsp;core&nbsp;nutation&nbsp;and&nbsp;without&nbsp;the&nbsp;corrections&nbsp;to&nbsp;Lieske&nbsp;precession.<br>
&nbsp;<br>
References<br>
----------<br>
..&nbsp;[R1]&nbsp;IERS&nbsp;Conventions&nbsp;(2003),&nbsp;Chapter&nbsp;5.<br>
..&nbsp;[R2]&nbsp;Simon&nbsp;et&nbsp;al.&nbsp;(1994)&nbsp;Astronomy&nbsp;and&nbsp;Astrophysics&nbsp;282,&nbsp;663-683,<br>
&nbsp;&nbsp;&nbsp;&nbsp;esp.&nbsp;Sections&nbsp;3.4-3.5.</tt></dd></dl>
 <dl><dt><a name="-iau2000b"><strong>iau2000b</strong></a>(jd_high, jd_low)</dt><dd><tt>Computes&nbsp;the&nbsp;forced&nbsp;nutation&nbsp;of&nbsp;the&nbsp;non-rigid&nbsp;Earth&nbsp;based&nbsp;on&nbsp;the<br>
IAU&nbsp;2000B&nbsp;precession/nutation&nbsp;model.<br>
&nbsp;<br>
Parameters<br>
----------<br>
jd_high&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;High-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
jd_low&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;Low-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
&nbsp;<br>
Returns<br>
-------<br>
(dpsi,&nbsp;deps)&nbsp;:&nbsp;tuple&nbsp;of&nbsp;floats<br>
&nbsp;&nbsp;&nbsp;&nbsp;Nutation&nbsp;(luni-solar&nbsp;+&nbsp;planetary)&nbsp;in&nbsp;(longitude,&nbsp;obliquity)&nbsp;in<br>
&nbsp;&nbsp;&nbsp;&nbsp;radians.<br>
&nbsp;<br>
Notes<br>
-----<br>
..&nbsp;[N1]&nbsp;IAU&nbsp;2000B&nbsp;reproduces&nbsp;the&nbsp;IAU&nbsp;2000A&nbsp;model&nbsp;to&nbsp;a&nbsp;precision&nbsp;of<br>
&nbsp;&nbsp;&nbsp;&nbsp;1&nbsp;milliarcsecond&nbsp;in&nbsp;the&nbsp;interval&nbsp;1995-2020.<br>
&nbsp;<br>
References<br>
----------<br>
..&nbsp;[R1]&nbsp;McCarthy,&nbsp;D.&nbsp;and&nbsp;Luzum,&nbsp;B.&nbsp;(2003).&nbsp;"An&nbsp;Abridged&nbsp;Model&nbsp;of&nbsp;the<br>
&nbsp;&nbsp;&nbsp;&nbsp;Precession&nbsp;&amp;&nbsp;Nutation&nbsp;of&nbsp;the&nbsp;Celestial&nbsp;Pole,"&nbsp;Celestial<br>
&nbsp;&nbsp;&nbsp;&nbsp;Mechanics&nbsp;and&nbsp;Dynamical&nbsp;Astronomy,&nbsp;Volume&nbsp;85,&nbsp;Issue&nbsp;1,<br>
&nbsp;&nbsp;&nbsp;&nbsp;Jan.&nbsp;2003,&nbsp;p.&nbsp;37.&nbsp;(IAU&nbsp;2000B)<br>
..&nbsp;[R2]&nbsp;IERS&nbsp;Conventions&nbsp;(2003),&nbsp;Chapter&nbsp;5.</tt></dd></dl>
 <dl><dt><a name="-nu2000k"><strong>nu2000k</strong></a>(jd_high, jd_low)</dt><dd><tt>Computes&nbsp;the&nbsp;forced&nbsp;nutation&nbsp;of&nbsp;the&nbsp;non-rigid&nbsp;Earth:&nbsp;Model&nbsp;NU2000K.<br>
This&nbsp;model&nbsp;is&nbsp;a&nbsp;modified&nbsp;version&nbsp;of&nbsp;IAU&nbsp;2000A,&nbsp;which&nbsp;has&nbsp;been<br>
truncated&nbsp;for&nbsp;speed&nbsp;of&nbsp;execution,&nbsp;and&nbsp;uses&nbsp;Simon&nbsp;et&nbsp;al.&nbsp;(1994)<br>
fundamental&nbsp;arguments&nbsp;throughout.NU2000K&nbsp;agrees&nbsp;with&nbsp;IAU&nbsp;2000A&nbsp;at<br>
the&nbsp;0.1&nbsp;milliarcsecond&nbsp;level&nbsp;from&nbsp;1700&nbsp;to&nbsp;2300.<br>
&nbsp;<br>
Parameters<br>
----------<br>
jd_high&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;High-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
jd_low&nbsp;:&nbsp;float<br>
&nbsp;&nbsp;&nbsp;&nbsp;Low-order&nbsp;part&nbsp;of&nbsp;TT&nbsp;Julian&nbsp;date.<br>
&nbsp;<br>
Returns<br>
-------<br>
(dpsi,&nbsp;deps)&nbsp;:&nbsp;tuple&nbsp;of&nbsp;floats<br>
&nbsp;&nbsp;&nbsp;&nbsp;Nutation&nbsp;(luni-solar&nbsp;+&nbsp;planetary)&nbsp;in&nbsp;(longitude,&nbsp;obliquity)&nbsp;in<br>
&nbsp;&nbsp;&nbsp;&nbsp;radians.<br>
&nbsp;<br>
Notes<br>
-----<br>
..&nbsp;[N1]&nbsp;NU2000K&nbsp;was&nbsp;compared&nbsp;to&nbsp;IAU&nbsp;2000A&nbsp;over&nbsp;six&nbsp;centuries<br>
&nbsp;&nbsp;&nbsp;&nbsp;(1700-2300).&nbsp;The&nbsp;average&nbsp;error&nbsp;in&nbsp;dpsi&nbsp;is&nbsp;20&nbsp;microarcseconds,<br>
&nbsp;&nbsp;&nbsp;&nbsp;with&nbsp;98%&nbsp;of&nbsp;the&nbsp;errors&nbsp;&lt;&nbsp;60&nbsp;microarcseconds;the&nbsp;average&nbsp;error&nbsp;in<br>
&nbsp;&nbsp;&nbsp;&nbsp;deleps&nbsp;is&nbsp;8&nbsp;microarcseconds,&nbsp;with&nbsp;100%&nbsp;of&nbsp;the&nbsp;errors&nbsp;&lt;&nbsp;60<br>
&nbsp;&nbsp;&nbsp;&nbsp;microarcseconds.<br>
..&nbsp;[N2]&nbsp;NU2000K&nbsp;was&nbsp;developed&nbsp;by&nbsp;G.&nbsp;Kaplan&nbsp;(USNO)&nbsp;in&nbsp;March&nbsp;2004.<br>
&nbsp;<br>
References<br>
----------<br>
..&nbsp;[R1]&nbsp;IERS&nbsp;Conventions&nbsp;(2003),&nbsp;Chapter&nbsp;5.<br>
..&nbsp;[R2]&nbsp;Simon&nbsp;et&nbsp;al.&nbsp;(1994)&nbsp;Astronomy&nbsp;and&nbsp;Astrophysics&nbsp;282,&nbsp;663-683,<br>
&nbsp;&nbsp;&nbsp;&nbsp;esp.&nbsp;Sections&nbsp;3.4-3.5.</tt></dd></dl>
 <dl><dt><a name="-pointer"><strong>pointer</strong></a>(...)</dt></dl>
 <dl><dt><a name="-resize"><strong>resize</strong></a>(...)</dt><dd><tt>Resize&nbsp;the&nbsp;memory&nbsp;buffer&nbsp;of&nbsp;a&nbsp;ctypes&nbsp;instance</tt></dd></dl>
 <dl><dt><a name="-set_conversion_mode"><strong>set_conversion_mode</strong></a>(...)</dt><dd><tt><a href="#-set_conversion_mode">set_conversion_mode</a>(encoding,&nbsp;errors)&nbsp;-&gt;&nbsp;(previous-encoding,&nbsp;previous-errors)<br>
&nbsp;<br>
Set&nbsp;the&nbsp;encoding&nbsp;and&nbsp;error&nbsp;handling&nbsp;ctypes&nbsp;uses&nbsp;when&nbsp;converting<br>
between&nbsp;unicode&nbsp;and&nbsp;strings.&nbsp;&nbsp;Returns&nbsp;the&nbsp;previous&nbsp;values.</tt></dd></dl>
 <dl><dt><a name="-set_errno"><strong>set_errno</strong></a>(...)</dt></dl>
 <dl><dt><a name="-sizeof"><strong>sizeof</strong></a>(...)</dt><dd><tt><a href="#-sizeof">sizeof</a>(C&nbsp;type)&nbsp;-&gt;&nbsp;integer<br>
<a href="#-sizeof">sizeof</a>(C&nbsp;instance)&nbsp;-&gt;&nbsp;integer<br>
Return&nbsp;the&nbsp;size&nbsp;in&nbsp;bytes&nbsp;of&nbsp;a&nbsp;C&nbsp;instance</tt></dd></dl>
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