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  <div class="section" id="reference-api">
<span id="api"></span><h1>Reference/API<a class="headerlink" href="#reference-api" title="Permalink to this headline"></a></h1>
<div class="section" id="module-astroplan">
<span id="astroplan-package"></span><h2>astroplan Package<a class="headerlink" href="#module-astroplan" title="Permalink to this headline"></a></h2>
<p>astroplan is an open source (BSD licensed) observation planning package for
astronomers that can help you plan for everything but the clouds.</p>
<p>It is an in-development <a class="reference external" href="http://www.astropy.org">Astropy</a>
<a class="reference external" href="http://www.astropy.org/affiliated/index.html">affiliated package</a> that
seeks to make your life as an observational astronomer a little less
infuriating.</p>
<ul class="simple">
<li>Code: <a class="reference external" href="https://github.com/astropy/astroplan">https://github.com/astropy/astroplan</a></li>
<li>Docs: <a class="reference external" href="https://astroplan.readthedocs.io/">https://astroplan.readthedocs.io/</a></li>
</ul>
<div class="section" id="functions">
<h3>Functions<a class="headerlink" href="#functions" title="Permalink to this headline"></a></h3>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.download_IERS_A.html#astroplan.download_IERS_A" title="astroplan.download_IERS_A"><code class="xref py py-obj docutils literal"><span class="pre">download_IERS_A</span></code></a>([show_progress])</td>
<td>Download and cache the IERS Bulletin A table.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.get_IERS_A_or_workaround.html#astroplan.get_IERS_A_or_workaround" title="astroplan.get_IERS_A_or_workaround"><code class="xref py py-obj docutils literal"><span class="pre">get_IERS_A_or_workaround</span></code></a>()</td>
<td>Get the cached IERS Bulletin A table if one exists.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.is_always_observable.html#astroplan.is_always_observable" title="astroplan.is_always_observable"><code class="xref py py-obj docutils literal"><span class="pre">is_always_observable</span></code></a>(constraints,&nbsp;observer,&nbsp;…)</td>
<td>A function to determine whether <code class="docutils literal"><span class="pre">targets</span></code> are always observable throughout <code class="docutils literal"><span class="pre">time_range</span></code> given constraints in the <code class="docutils literal"><span class="pre">constraints_list</span></code> for a particular <code class="docutils literal"><span class="pre">observer</span></code>.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.is_event_observable.html#astroplan.is_event_observable" title="astroplan.is_event_observable"><code class="xref py py-obj docutils literal"><span class="pre">is_event_observable</span></code></a>(constraints,&nbsp;observer,&nbsp;…)</td>
<td>Determines if the <code class="docutils literal"><span class="pre">target</span></code> is observable at each time in <code class="docutils literal"><span class="pre">times</span></code>, given constraints in <code class="docutils literal"><span class="pre">constraints</span></code> for a particular <code class="docutils literal"><span class="pre">observer</span></code>.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.is_observable.html#astroplan.is_observable" title="astroplan.is_observable"><code class="xref py py-obj docutils literal"><span class="pre">is_observable</span></code></a>(constraints,&nbsp;observer,&nbsp;targets)</td>
<td>Determines if the <code class="docutils literal"><span class="pre">targets</span></code> are observable during <code class="docutils literal"><span class="pre">time_range</span></code> given constraints in <code class="docutils literal"><span class="pre">constraints_list</span></code> for a particular <code class="docutils literal"><span class="pre">observer</span></code>.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.max_best_rescale.html#astroplan.max_best_rescale" title="astroplan.max_best_rescale"><code class="xref py py-obj docutils literal"><span class="pre">max_best_rescale</span></code></a>(vals,&nbsp;min_val,&nbsp;max_val[,&nbsp;…])</td>
<td>rescales an input array <code class="docutils literal"><span class="pre">vals</span></code> to be a score (between zero and one),</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.min_best_rescale.html#astroplan.min_best_rescale" title="astroplan.min_best_rescale"><code class="xref py py-obj docutils literal"><span class="pre">min_best_rescale</span></code></a>(vals,&nbsp;min_val,&nbsp;max_val[,&nbsp;…])</td>
<td>rescales an input array <code class="docutils literal"><span class="pre">vals</span></code> to be a score (between zero and one),</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.months_observable.html#astroplan.months_observable" title="astroplan.months_observable"><code class="xref py py-obj docutils literal"><span class="pre">months_observable</span></code></a>(constraints,&nbsp;observer,&nbsp;targets)</td>
<td>Determines which month the specified <code class="docutils literal"><span class="pre">targets</span></code> are observable for a specific <code class="docutils literal"><span class="pre">observer</span></code>, given the supplied <code class="docutils literal"><span class="pre">constriants</span></code>.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.moon_illumination.html#astroplan.moon_illumination" title="astroplan.moon_illumination"><code class="xref py py-obj docutils literal"><span class="pre">moon_illumination</span></code></a>(time[,&nbsp;ephemeris])</td>
<td>Calculate fraction of the moon illuminated.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.moon_phase_angle.html#astroplan.moon_phase_angle" title="astroplan.moon_phase_angle"><code class="xref py py-obj docutils literal"><span class="pre">moon_phase_angle</span></code></a>(time[,&nbsp;ephemeris])</td>
<td>Calculate lunar orbital phase in radians.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.observability_table.html#astroplan.observability_table" title="astroplan.observability_table"><code class="xref py py-obj docutils literal"><span class="pre">observability_table</span></code></a>(constraints,&nbsp;observer,&nbsp;…)</td>
<td>Creates a table with information about observability for all  the <code class="docutils literal"><span class="pre">targets</span></code> over the requested <code class="docutils literal"><span class="pre">time_range</span></code>, given the constraints in <code class="docutils literal"><span class="pre">constraints_list</span></code> for <code class="docutils literal"><span class="pre">observer</span></code>.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.stride_array.html#astroplan.stride_array" title="astroplan.stride_array"><code class="xref py py-obj docutils literal"><span class="pre">stride_array</span></code></a>(arr,&nbsp;window_width)</td>
<td>Computes all possible sequential subarrays of arr with length = window_width</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.test.html#astroplan.test" title="astroplan.test"><code class="xref py py-obj docutils literal"><span class="pre">test</span></code></a>([package,&nbsp;test_path,&nbsp;args,&nbsp;plugins,&nbsp;…])</td>
<td>Run the tests using <a class="reference external" href="http://pytest.org/latest">py.test</a>.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.time_grid_from_range.html#astroplan.time_grid_from_range" title="astroplan.time_grid_from_range"><code class="xref py py-obj docutils literal"><span class="pre">time_grid_from_range</span></code></a>(time_range[,&nbsp;…])</td>
<td>Get linearly-spaced sequence of times.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="classes">
<h3>Classes<a class="headerlink" href="#classes" title="Permalink to this headline"></a></h3>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.AirmassConstraint.html#astroplan.AirmassConstraint" title="astroplan.AirmassConstraint"><code class="xref py py-obj docutils literal"><span class="pre">AirmassConstraint</span></code></a>([max,&nbsp;min,&nbsp;boolean_constraint])</td>
<td>Constrain the airmass of a target.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.AltitudeConstraint.html#astroplan.AltitudeConstraint" title="astroplan.AltitudeConstraint"><code class="xref py py-obj docutils literal"><span class="pre">AltitudeConstraint</span></code></a>([min,&nbsp;max,&nbsp;…])</td>
<td>Constrain the altitude of the target.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.AstroplanWarning.html#astroplan.AstroplanWarning" title="astroplan.AstroplanWarning"><code class="xref py py-obj docutils literal"><span class="pre">AstroplanWarning</span></code></a></td>
<td>Superclass for warnings used by astroplan</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.AtNightConstraint.html#astroplan.AtNightConstraint" title="astroplan.AtNightConstraint"><code class="xref py py-obj docutils literal"><span class="pre">AtNightConstraint</span></code></a>([max_solar_altitude,&nbsp;…])</td>
<td>Constrain the Sun to be below <code class="docutils literal"><span class="pre">horizon</span></code>.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.Constraint.html#astroplan.Constraint" title="astroplan.Constraint"><code class="xref py py-obj docutils literal"><span class="pre">Constraint</span></code></a></td>
<td>Abstract class for objects defining observational constraints.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.EclipsingSystem.html#astroplan.EclipsingSystem" title="astroplan.EclipsingSystem"><code class="xref py py-obj docutils literal"><span class="pre">EclipsingSystem</span></code></a>(primary_eclipse_time,&nbsp;…[,&nbsp;…])</td>
<td>Define parameters for an eclipsing system; useful for an eclipsing binary or transiting exoplanet.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.FixedTarget.html#astroplan.FixedTarget" title="astroplan.FixedTarget"><code class="xref py py-obj docutils literal"><span class="pre">FixedTarget</span></code></a>(coord[,&nbsp;name])</td>
<td>Coordinates and metadata for an object that is “fixed” with respect to the celestial sphere.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.LocalTimeConstraint.html#astroplan.LocalTimeConstraint" title="astroplan.LocalTimeConstraint"><code class="xref py py-obj docutils literal"><span class="pre">LocalTimeConstraint</span></code></a>([min,&nbsp;max])</td>
<td>Constrain the observable hours.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.MoonIlluminationConstraint.html#astroplan.MoonIlluminationConstraint" title="astroplan.MoonIlluminationConstraint"><code class="xref py py-obj docutils literal"><span class="pre">MoonIlluminationConstraint</span></code></a>([min,&nbsp;max,&nbsp;ephemeris])</td>
<td>Constrain the fractional illumination of the Earth’s moon.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.MoonSeparationConstraint.html#astroplan.MoonSeparationConstraint" title="astroplan.MoonSeparationConstraint"><code class="xref py py-obj docutils literal"><span class="pre">MoonSeparationConstraint</span></code></a>([min,&nbsp;max,&nbsp;ephemeris])</td>
<td>Constrain the distance between the Earth’s moon and some targets.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.NonFixedTarget.html#astroplan.NonFixedTarget" title="astroplan.NonFixedTarget"><code class="xref py py-obj docutils literal"><span class="pre">NonFixedTarget</span></code></a>([name,&nbsp;ra,&nbsp;dec,&nbsp;marker])</td>
<td>Placeholder for future function.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.Observer.html#astroplan.Observer" title="astroplan.Observer"><code class="xref py py-obj docutils literal"><span class="pre">Observer</span></code></a>([location,&nbsp;timezone,&nbsp;name,&nbsp;…])</td>
<td>A container class for information about an observer’s location and environment.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.ObservingBlock.html#astroplan.ObservingBlock" title="astroplan.ObservingBlock"><code class="xref py py-obj docutils literal"><span class="pre">ObservingBlock</span></code></a>(target,&nbsp;duration,&nbsp;priority[,&nbsp;…])</td>
<td>An observation to be scheduled, consisting of a target and associated constraints on observations.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.OldEarthOrientationDataWarning.html#astroplan.OldEarthOrientationDataWarning" title="astroplan.OldEarthOrientationDataWarning"><code class="xref py py-obj docutils literal"><span class="pre">OldEarthOrientationDataWarning</span></code></a></td>
<td>Using old Earth rotation data from IERS</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.PeriodicEvent.html#astroplan.PeriodicEvent" title="astroplan.PeriodicEvent"><code class="xref py py-obj docutils literal"><span class="pre">PeriodicEvent</span></code></a>(epoch,&nbsp;period[,&nbsp;duration,&nbsp;name])</td>
<td>A periodic event defined by an epoch and period.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.PhaseConstraint.html#astroplan.PhaseConstraint" title="astroplan.PhaseConstraint"><code class="xref py py-obj docutils literal"><span class="pre">PhaseConstraint</span></code></a>(periodic_event[,&nbsp;min,&nbsp;max])</td>
<td>Constrain observations to times in some range of phases for a periodic event (e.g.~transiting exoplanets, eclipsing binaries).</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.PlotBelowHorizonWarning.html#astroplan.PlotBelowHorizonWarning" title="astroplan.PlotBelowHorizonWarning"><code class="xref py py-obj docutils literal"><span class="pre">PlotBelowHorizonWarning</span></code></a></td>
<td>Warning for when something is hidden on a plot because it’s below the horizon</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.PlotWarning.html#astroplan.PlotWarning" title="astroplan.PlotWarning"><code class="xref py py-obj docutils literal"><span class="pre">PlotWarning</span></code></a></td>
<td>Warnings dealing with the plotting aspects of astroplan</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.PrimaryEclipseConstraint.html#astroplan.PrimaryEclipseConstraint" title="astroplan.PrimaryEclipseConstraint"><code class="xref py py-obj docutils literal"><span class="pre">PrimaryEclipseConstraint</span></code></a>(eclipsing_system)</td>
<td>Constrain observations to times during primary eclipse.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.PriorityScheduler.html#astroplan.PriorityScheduler" title="astroplan.PriorityScheduler"><code class="xref py py-obj docutils literal"><span class="pre">PriorityScheduler</span></code></a>(*args,&nbsp;**kwargs)</td>
<td>A scheduler that optimizes a prioritized list.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.Schedule.html#astroplan.Schedule" title="astroplan.Schedule"><code class="xref py py-obj docutils literal"><span class="pre">Schedule</span></code></a>(start_time,&nbsp;end_time[,&nbsp;constraints])</td>
<td>An object that represents a schedule, consisting of a list of <a class="reference internal" href="api/astroplan.Slot.html#astroplan.Slot" title="astroplan.scheduling.Slot"><code class="xref py py-obj docutils literal"><span class="pre">Slot</span></code></a> objects.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.Scheduler.html#astroplan.Scheduler" title="astroplan.Scheduler"><code class="xref py py-obj docutils literal"><span class="pre">Scheduler</span></code></a>(constraints,&nbsp;observer[,&nbsp;…])</td>
<td>Schedule a set of <a class="reference internal" href="api/astroplan.ObservingBlock.html#astroplan.ObservingBlock" title="astroplan.scheduling.ObservingBlock"><code class="xref py py-obj docutils literal"><span class="pre">ObservingBlock</span></code></a> objects</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.Scorer.html#astroplan.Scorer" title="astroplan.Scorer"><code class="xref py py-obj docutils literal"><span class="pre">Scorer</span></code></a>(blocks,&nbsp;observer,&nbsp;schedule[,&nbsp;…])</td>
<td>Returns scores and score arrays from the evaluation of constraints on</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.SecondaryEclipseConstraint.html#astroplan.SecondaryEclipseConstraint" title="astroplan.SecondaryEclipseConstraint"><code class="xref py py-obj docutils literal"><span class="pre">SecondaryEclipseConstraint</span></code></a>(eclipsing_system)</td>
<td>Constrain observations to times during secondary eclipse.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.SequentialScheduler.html#astroplan.SequentialScheduler" title="astroplan.SequentialScheduler"><code class="xref py py-obj docutils literal"><span class="pre">SequentialScheduler</span></code></a>(*args,&nbsp;**kwargs)</td>
<td>A scheduler that does “stupid simple sequential scheduling”.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.Slot.html#astroplan.Slot" title="astroplan.Slot"><code class="xref py py-obj docutils literal"><span class="pre">Slot</span></code></a>(start_time,&nbsp;end_time)</td>
<td>A time slot consisting of a start and end time</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.SunSeparationConstraint.html#astroplan.SunSeparationConstraint" title="astroplan.SunSeparationConstraint"><code class="xref py py-obj docutils literal"><span class="pre">SunSeparationConstraint</span></code></a>([min,&nbsp;max])</td>
<td>Constrain the distance between the Sun and some targets.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.Target.html#astroplan.Target" title="astroplan.Target"><code class="xref py py-obj docutils literal"><span class="pre">Target</span></code></a>([name,&nbsp;ra,&nbsp;dec,&nbsp;marker])</td>
<td>Abstract base class for target objects.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.TargetAlwaysUpWarning.html#astroplan.TargetAlwaysUpWarning" title="astroplan.TargetAlwaysUpWarning"><code class="xref py py-obj docutils literal"><span class="pre">TargetAlwaysUpWarning</span></code></a></td>
<td>Target is circumpolar</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.TargetNeverUpWarning.html#astroplan.TargetNeverUpWarning" title="astroplan.TargetNeverUpWarning"><code class="xref py py-obj docutils literal"><span class="pre">TargetNeverUpWarning</span></code></a></td>
<td>Target never rises above horizon</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.TimeConstraint.html#astroplan.TimeConstraint" title="astroplan.TimeConstraint"><code class="xref py py-obj docutils literal"><span class="pre">TimeConstraint</span></code></a>([min,&nbsp;max])</td>
<td>Constrain the observing time to be within certain time limits.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.TransitionBlock.html#astroplan.TransitionBlock" title="astroplan.TransitionBlock"><code class="xref py py-obj docutils literal"><span class="pre">TransitionBlock</span></code></a>(components[,&nbsp;start_time])</td>
<td>Parameterizes the “dead time”, e.g.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.Transitioner.html#astroplan.Transitioner" title="astroplan.Transitioner"><code class="xref py py-obj docutils literal"><span class="pre">Transitioner</span></code></a>([slew_rate,&nbsp;…])</td>
<td>A class that defines how to compute transition times from one block to another.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="class-inheritance-diagram">
<h3>Class Inheritance Diagram<a class="headerlink" href="#class-inheritance-diagram" title="Permalink to this headline"></a></h3>
digraph inheritance848c7d1aac {
rankdir=LR;
size=&quot;8.0, 12.0&quot;;
  &quot;AirmassConstraint&quot; [URL=&quot;../api/astroplan.AirmassConstraint.html#astroplan.AirmassConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the airmass of a target.&quot;];
  &quot;AltitudeConstraint&quot; -&gt; &quot;AirmassConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;AltitudeConstraint&quot; [URL=&quot;../api/astroplan.AltitudeConstraint.html#astroplan.AltitudeConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the altitude of the target.&quot;];
  &quot;Constraint&quot; -&gt; &quot;AltitudeConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;AstroplanWarning&quot; [URL=&quot;../api/astroplan.AstroplanWarning.html#astroplan.AstroplanWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Superclass for warnings used by astroplan&quot;];
  &quot;AstropyWarning&quot; -&gt; &quot;AstroplanWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;AstropyWarning&quot; [fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,tooltip=&quot;The base warning class from which all Astropy warnings should inherit.&quot;];
  &quot;AtNightConstraint&quot; [URL=&quot;../api/astroplan.AtNightConstraint.html#astroplan.AtNightConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the Sun to be below ``horizon``.&quot;];
  &quot;Constraint&quot; -&gt; &quot;AtNightConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;Constraint&quot; [URL=&quot;../api/astroplan.Constraint.html#astroplan.Constraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Abstract class for objects defining observational constraints.&quot;];
  &quot;EclipsingSystem&quot; [URL=&quot;../api/astroplan.EclipsingSystem.html#astroplan.EclipsingSystem&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Define parameters for an eclipsing system; useful for an eclipsing binary or&quot;];
  &quot;PeriodicEvent&quot; -&gt; &quot;EclipsingSystem&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;FixedTarget&quot; [URL=&quot;../api/astroplan.FixedTarget.html#astroplan.FixedTarget&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Coordinates and metadata for an object that is \&quot;fixed\&quot; with respect to the&quot;];
  &quot;Target&quot; -&gt; &quot;FixedTarget&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;LocalTimeConstraint&quot; [URL=&quot;../api/astroplan.LocalTimeConstraint.html#astroplan.LocalTimeConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the observable hours.&quot;];
  &quot;Constraint&quot; -&gt; &quot;LocalTimeConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;MoonIlluminationConstraint&quot; [URL=&quot;../api/astroplan.MoonIlluminationConstraint.html#astroplan.MoonIlluminationConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the fractional illumination of the Earth's moon.&quot;];
  &quot;Constraint&quot; -&gt; &quot;MoonIlluminationConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;MoonSeparationConstraint&quot; [URL=&quot;../api/astroplan.MoonSeparationConstraint.html#astroplan.MoonSeparationConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the distance between the Earth's moon and some targets.&quot;];
  &quot;Constraint&quot; -&gt; &quot;MoonSeparationConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;NonFixedTarget&quot; [URL=&quot;../api/astroplan.NonFixedTarget.html#astroplan.NonFixedTarget&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Placeholder for future function.&quot;];
  &quot;Target&quot; -&gt; &quot;NonFixedTarget&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;Observer&quot; [URL=&quot;../api/astroplan.Observer.html#astroplan.Observer&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A container class for information about an observer's location and&quot;];
  &quot;ObservingBlock&quot; [URL=&quot;../api/astroplan.ObservingBlock.html#astroplan.ObservingBlock&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;An observation to be scheduled, consisting of a target and associated&quot;];
  &quot;OldEarthOrientationDataWarning&quot; [URL=&quot;../api/astroplan.OldEarthOrientationDataWarning.html#astroplan.OldEarthOrientationDataWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Using old Earth rotation data from IERS&quot;];
  &quot;AstroplanWarning&quot; -&gt; &quot;OldEarthOrientationDataWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;PeriodicEvent&quot; [URL=&quot;../api/astroplan.PeriodicEvent.html#astroplan.PeriodicEvent&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A periodic event defined by an epoch and period.&quot;];
  &quot;PhaseConstraint&quot; [URL=&quot;../api/astroplan.PhaseConstraint.html#astroplan.PhaseConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain observations to times in some range of phases for a periodic event&quot;];
  &quot;Constraint&quot; -&gt; &quot;PhaseConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;PlotBelowHorizonWarning&quot; [URL=&quot;../api/astroplan.PlotBelowHorizonWarning.html#astroplan.PlotBelowHorizonWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Warning for when something is hidden on a plot because it's below the horizon&quot;];
  &quot;PlotWarning&quot; -&gt; &quot;PlotBelowHorizonWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;PlotWarning&quot; [URL=&quot;../api/astroplan.PlotWarning.html#astroplan.PlotWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Warnings dealing with the plotting aspects of astroplan&quot;];
  &quot;AstroplanWarning&quot; -&gt; &quot;PlotWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;PrimaryEclipseConstraint&quot; [URL=&quot;../api/astroplan.PrimaryEclipseConstraint.html#astroplan.PrimaryEclipseConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain observations to times during primary eclipse.&quot;];
  &quot;Constraint&quot; -&gt; &quot;PrimaryEclipseConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;PriorityScheduler&quot; [URL=&quot;../api/astroplan.PriorityScheduler.html#astroplan.PriorityScheduler&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A scheduler that optimizes a prioritized list.  That is, it&quot;];
  &quot;Scheduler&quot; -&gt; &quot;PriorityScheduler&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;Schedule&quot; [URL=&quot;../api/astroplan.Schedule.html#astroplan.Schedule&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;An object that represents a schedule, consisting of a list of&quot;];
  &quot;Scheduler&quot; [URL=&quot;../api/astroplan.Scheduler.html#astroplan.Scheduler&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Schedule a set of `~astroplan.scheduling.ObservingBlock` objects&quot;];
  &quot;Scorer&quot; [URL=&quot;../api/astroplan.Scorer.html#astroplan.Scorer&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Returns scores and score arrays from the evaluation of constraints on&quot;];
  &quot;SecondaryEclipseConstraint&quot; [URL=&quot;../api/astroplan.SecondaryEclipseConstraint.html#astroplan.SecondaryEclipseConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain observations to times during secondary eclipse.&quot;];
  &quot;Constraint&quot; -&gt; &quot;SecondaryEclipseConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;SequentialScheduler&quot; [URL=&quot;../api/astroplan.SequentialScheduler.html#astroplan.SequentialScheduler&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A scheduler that does \&quot;stupid simple sequential scheduling\&quot;.  That is, it&quot;];
  &quot;Scheduler&quot; -&gt; &quot;SequentialScheduler&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;Slot&quot; [URL=&quot;../api/astroplan.Slot.html#astroplan.Slot&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A time slot consisting of a start and end time&quot;];
  &quot;SunSeparationConstraint&quot; [URL=&quot;../api/astroplan.SunSeparationConstraint.html#astroplan.SunSeparationConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the distance between the Sun and some targets.&quot;];
  &quot;Constraint&quot; -&gt; &quot;SunSeparationConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;Target&quot; [URL=&quot;../api/astroplan.Target.html#astroplan.Target&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Abstract base class for target objects.&quot;];
  &quot;TargetAlwaysUpWarning&quot; [URL=&quot;../api/astroplan.TargetAlwaysUpWarning.html#astroplan.TargetAlwaysUpWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Target is circumpolar&quot;];
  &quot;AstroplanWarning&quot; -&gt; &quot;TargetAlwaysUpWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;TargetNeverUpWarning&quot; [URL=&quot;../api/astroplan.TargetNeverUpWarning.html#astroplan.TargetNeverUpWarning&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Target never rises above horizon&quot;];
  &quot;AstroplanWarning&quot; -&gt; &quot;TargetNeverUpWarning&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;TimeConstraint&quot; [URL=&quot;../api/astroplan.TimeConstraint.html#astroplan.TimeConstraint&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Constrain the observing time to be within certain time limits.&quot;];
  &quot;Constraint&quot; -&gt; &quot;TimeConstraint&quot; [arrowsize=0.5,style=&quot;setlinewidth(0.5)&quot;];
  &quot;TransitionBlock&quot; [URL=&quot;../api/astroplan.TransitionBlock.html#astroplan.TransitionBlock&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;Parameterizes the \&quot;dead time\&quot;, e.g. between observations, while the&quot;];
  &quot;Transitioner&quot; [URL=&quot;../api/astroplan.Transitioner.html#astroplan.Transitioner&quot;,fontname=&quot;Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans&quot;,fontsize=10,height=0.25,shape=box,style=&quot;setlinewidth(0.5)&quot;,target=&quot;_top&quot;,tooltip=&quot;A class that defines how to compute transition times from one block to&quot;];
}
</div>
</div>
<div class="section" id="module-astroplan.plots">
<span id="astroplan-plots-package"></span><h2>astroplan.plots Package<a class="headerlink" href="#module-astroplan.plots" title="Permalink to this headline"></a></h2>
<p><a class="reference internal" href="#module-astroplan.plots" title="astroplan.plots"><code class="xref py py-obj docutils literal"><span class="pre">astroplan.plots</span></code></a> contains functions for making plots of commonly-used
quantities in observation planning (e.g., airmass vs. time), using <a class="reference internal" href="#module-astroplan" title="astroplan"><code class="xref py py-obj docutils literal"><span class="pre">astroplan</span></code></a>
and <a class="reference external" href="http://www.matplotlib.org">Matplotlib</a>.</p>
<div class="section" id="id1">
<h3>Functions<a class="headerlink" href="#id1" title="Permalink to this headline"></a></h3>
<table border="1" class="longtable docutils">
<colgroup>
<col width="10%" />
<col width="90%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.plots.plot_airmass.html#astroplan.plots.plot_airmass" title="astroplan.plots.plot_airmass"><code class="xref py py-obj docutils literal"><span class="pre">plot_airmass</span></code></a>(targets,&nbsp;observer,&nbsp;time[,&nbsp;ax,&nbsp;…])</td>
<td>Plots airmass as a function of time for a given target.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.plots.plot_finder_image.html#astroplan.plots.plot_finder_image" title="astroplan.plots.plot_finder_image"><code class="xref py py-obj docutils literal"><span class="pre">plot_finder_image</span></code></a>(target[,&nbsp;survey,&nbsp;…])</td>
<td>Plot survey image centered on <code class="docutils literal"><span class="pre">target</span></code>.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.plots.plot_parallactic.html#astroplan.plots.plot_parallactic" title="astroplan.plots.plot_parallactic"><code class="xref py py-obj docutils literal"><span class="pre">plot_parallactic</span></code></a>(target,&nbsp;observer,&nbsp;time[,&nbsp;…])</td>
<td>Plots parallactic angle as a function of time for a given target.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.plots.plot_schedule_airmass.html#astroplan.plots.plot_schedule_airmass" title="astroplan.plots.plot_schedule_airmass"><code class="xref py py-obj docutils literal"><span class="pre">plot_schedule_airmass</span></code></a>(schedule[,&nbsp;show_night])</td>
<td>Plots when observations of targets are scheduled to occur superimposed upon plots of the airmasses of the targets.</td>
</tr>
<tr class="row-odd"><td><a class="reference internal" href="api/astroplan.plots.plot_sky.html#astroplan.plots.plot_sky" title="astroplan.plots.plot_sky"><code class="xref py py-obj docutils literal"><span class="pre">plot_sky</span></code></a>(target,&nbsp;observer,&nbsp;time[,&nbsp;ax,&nbsp;…])</td>
<td>Plots target positions in the sky with respect to the observer’s location.</td>
</tr>
<tr class="row-even"><td><a class="reference internal" href="api/astroplan.plots.plot_sky_24hr.html#astroplan.plots.plot_sky_24hr" title="astroplan.plots.plot_sky_24hr"><code class="xref py py-obj docutils literal"><span class="pre">plot_sky_24hr</span></code></a>(target,&nbsp;observer,&nbsp;time[,&nbsp;…])</td>
<td>Plots target positions in the sky with respect to the observer’s location over a twenty-four hour period centered on <code class="docutils literal"><span class="pre">time</span></code>.</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>


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        <div class="sphinxsidebarwrapper"><h3>Page Contents</h3>
<ul>
<li><a class="reference internal" href="#">Reference/API</a><ul>
<li><a class="reference internal" href="#module-astroplan">astroplan Package</a><ul>
<li><a class="reference internal" href="#functions">Functions</a></li>
<li><a class="reference internal" href="#classes">Classes</a></li>
<li><a class="reference internal" href="#class-inheritance-diagram">Class Inheritance Diagram</a></li>
</ul>
</li>
<li><a class="reference internal" href="#module-astroplan.plots">astroplan.plots Package</a><ul>
<li><a class="reference internal" href="#id1">Functions</a></li>
</ul>
</li>
</ul>
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