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Allen Downey
2020-11-18 19:32:36 -05:00
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@@ -582,7 +582,7 @@ Parsing table 'gaiadr2.gaia_source'...
Done.
</pre></div>
</div>
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;astroquery.utils.tap.model.taptable.TapTableMeta at 0x7f10a2326820&gt;
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;astroquery.utils.tap.model.taptable.TapTableMeta at 0x7fbbf0d60a60&gt;
</pre></div>
</div>
</div>
@@ -830,7 +830,7 @@ quality_flag
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;astroquery.utils.tap.model.job.Job at 0x7f10a2344250&gt;
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;astroquery.utils.tap.model.job.Job at 0x7fbbf0d8f5b0&gt;
</pre></div>
</div>
</div>
@@ -851,11 +851,11 @@ source_id int64 Unique source identifier (unique within a particular Data
ref_epoch float64 yr Reference epoch 0
ra float64 deg Right ascension 0
dec float64 deg Declination 0
parallax float64 mas Parallax 2
parallax float64 mas Parallax 3
Jobid: None
Phase: COMPLETED
Owner: None
Output file: sync_20201117092213.xml.gz
Output file: sync_20201117154748.xml.gz
Results: None
</pre></div>
</div>
@@ -891,20 +891,20 @@ Results: None
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=10</i>
<table id="table139709417416256" class="table-striped table-bordered table-condensed">
<table id="table140445176362752" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th><th>ref_epoch</th><th>ra</th><th>dec</th><th>parallax</th></tr></thead>
<thead><tr><th></th><th>yr</th><th>deg</th><th>deg</th><th>mas</th></tr></thead>
<thead><tr><th>int64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th></tr></thead>
<tr><td>2029534160912857984</td><td>2015.5</td><td>302.1221011162626</td><td>29.464242405581903</td><td>0.26719312673637957</td></tr>
<tr><td>2029527563843522688</td><td>2015.5</td><td>301.76635488333477</td><td>29.297302003155878</td><td>-0.5339115955037064</td></tr>
<tr><td>2029530175194496768</td><td>2015.5</td><td>301.84979907220344</td><td>29.424817571056252</td><td>0.4993858623581147</td></tr>
<tr><td>2029552990056965376</td><td>2015.5</td><td>302.61233151638965</td><td>29.69609949341979</td><td>--</td></tr>
<tr><td>2029559174807808512</td><td>2015.5</td><td>302.08554269720975</td><td>29.568937428891136</td><td>0.07378124688708597</td></tr>
<tr><td>2029534126551565440</td><td>2015.5</td><td>302.1383595452346</td><td>29.4560049110412</td><td>--</td></tr>
<tr><td>2029534023485750400</td><td>2015.5</td><td>302.06234099159894</td><td>29.463904128839516</td><td>-0.6248984748555095</td></tr>
<tr><td>2029552990053470592</td><td>2015.5</td><td>302.61273920007653</td><td>29.701315238258985</td><td>-0.5113424569489686</td></tr>
<tr><td>2029545430912236672</td><td>2015.5</td><td>302.2752745129967</td><td>29.482001000231968</td><td>0.049122831032945236</td></tr>
<tr><td>2029534435790829568</td><td>2015.5</td><td>302.08962936217654</td><td>29.490016052993543</td><td>1.0104447723028214</td></tr>
<tr><td>5849745869473487488</td><td>2015.5</td><td>219.73560389985096</td><td>-65.20710341703752</td><td>0.5482007725782427</td></tr>
<tr><td>5849746938973887488</td><td>2015.5</td><td>219.60817792260227</td><td>-65.1665758810783</td><td>--</td></tr>
<tr><td>5849749412871953152</td><td>2015.5</td><td>219.47762991904543</td><td>-65.19549094160195</td><td>0.8018859767657315</td></tr>
<tr><td>5849756177391089408</td><td>2015.5</td><td>221.04673046937168</td><td>-65.57259338863145</td><td>0.2470355479426332</td></tr>
<tr><td>5849740479338016512</td><td>2015.5</td><td>219.48034924849668</td><td>-65.248465161243</td><td>0.7498253475529492</td></tr>
<tr><td>5849755150954806784</td><td>2015.5</td><td>220.7783390948865</td><td>-65.59812207307075</td><td>-0.17531203854271796</td></tr>
<tr><td>5849742231683753344</td><td>2015.5</td><td>219.12014600682343</td><td>-65.30003719122678</td><td>0.2758280660620302</td></tr>
<tr><td>5849741853727882752</td><td>2015.5</td><td>219.08570521942724</td><td>-65.3172714882006</td><td>1.4628766254219059</td></tr>
<tr><td>5849749138009127680</td><td>2015.5</td><td>219.7980142071744</td><td>-65.08195659745067</td><td>--</td></tr>
<tr><td>5849741716288860672</td><td>2015.5</td><td>219.0424551498036</td><td>-65.33572466059165</td><td>--</td></tr>
</table></div></div>
</div>
<p>Each column has a name, units, and a data type.</p>
@@ -957,10 +957,10 @@ ref_epoch float64 yr Refere
ra float64 deg Right ascension
dec float64 deg Declination
parallax float64 mas Parallax
Jobid: 1605622934969O
Jobid: 1605646069281O
Phase: COMPLETED
Owner: None
Output file: async_20201117092215.vot
Output file: async_20201117154749.vot
Results: None
</pre></div>
</div>
@@ -976,30 +976,30 @@ Results: None
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=3000</i>
<table id="table139709414533440" class="table-striped table-bordered table-condensed">
<table id="table140445173361824" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th><th>ref_epoch</th><th>ra</th><th>dec</th><th>parallax</th></tr></thead>
<thead><tr><th></th><th>yr</th><th>deg</th><th>deg</th><th>mas</th></tr></thead>
<thead><tr><th>int64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th></tr></thead>
<tr><td>2029534160912857984</td><td>2015.5</td><td>302.1221011162626</td><td>29.464242405581903</td><td>0.26719312673637957</td></tr>
<tr><td>2029527563843522688</td><td>2015.5</td><td>301.76635488333477</td><td>29.297302003155878</td><td>-0.5339115955037064</td></tr>
<tr><td>2029530175194496768</td><td>2015.5</td><td>301.84979907220344</td><td>29.424817571056252</td><td>0.4993858623581147</td></tr>
<tr><td>2029559174807808512</td><td>2015.5</td><td>302.08554269720975</td><td>29.568937428891136</td><td>0.07378124688708597</td></tr>
<tr><td>2029534023485750400</td><td>2015.5</td><td>302.06234099159894</td><td>29.463904128839516</td><td>-0.6248984748555095</td></tr>
<tr><td>2029552990053470592</td><td>2015.5</td><td>302.61273920007653</td><td>29.701315238258985</td><td>-0.5113424569489686</td></tr>
<tr><td>2029545430912236672</td><td>2015.5</td><td>302.2752745129967</td><td>29.482001000231968</td><td>0.049122831032945236</td></tr>
<tr><td>2029551375154168192</td><td>2015.5</td><td>302.6322719484525</td><td>29.629231848937902</td><td>-0.4273623555622012</td></tr>
<tr><td>2029537184581680000</td><td>2015.5</td><td>301.8270877829269</td><td>29.481945977423116</td><td>0.686631849492751</td></tr>
<tr><td>5849745869473487488</td><td>2015.5</td><td>219.73560389985096</td><td>-65.20710341703752</td><td>0.5482007725782427</td></tr>
<tr><td>5849749412871953152</td><td>2015.5</td><td>219.47762991904543</td><td>-65.19549094160195</td><td>0.8018859767657315</td></tr>
<tr><td>5849756177391089408</td><td>2015.5</td><td>221.04673046937168</td><td>-65.57259338863145</td><td>0.2470355479426332</td></tr>
<tr><td>5849740479338016512</td><td>2015.5</td><td>219.48034924849668</td><td>-65.248465161243</td><td>0.7498253475529492</td></tr>
<tr><td>5849755150954806784</td><td>2015.5</td><td>220.7783390948865</td><td>-65.59812207307075</td><td>-0.17531203854271796</td></tr>
<tr><td>5849742231683753344</td><td>2015.5</td><td>219.12014600682343</td><td>-65.30003719122678</td><td>0.2758280660620302</td></tr>
<tr><td>5849756594002789504</td><td>2015.5</td><td>221.2361295175457</td><td>-65.52974480682217</td><td>0.29058299600659726</td></tr>
<tr><td>5849758208912099200</td><td>2015.5</td><td>220.75442873671042</td><td>-65.56715622350804</td><td>-0.1685867513524159</td></tr>
<tr><td>5849754768662465920</td><td>2015.5</td><td>221.0112032878186</td><td>-65.5732299894003</td><td>0.14826104583068447</td></tr>
<tr><td>...</td><td>...</td><td>...</td><td>...</td><td>...</td></tr>
<tr><td>5351023617248935296</td><td>2015.5</td><td>163.20342713669297</td><td>-57.45843664435045</td><td>-0.12712245925716417</td></tr>
<tr><td>5351013034403261056</td><td>2015.5</td><td>162.76029338894156</td><td>-57.57725086313733</td><td>-0.04737425207265826</td></tr>
<tr><td>6230089722024056576</td><td>2015.5</td><td>221.13188844526658</td><td>-23.856129423698576</td><td>0.40215405335632315</td></tr>
<tr><td>6229981248329591552</td><td>2015.5</td><td>219.5757477670797</td><td>-24.520741795344115</td><td>-0.1711128865194354</td></tr>
<tr><td>6230163114425691904</td><td>2015.5</td><td>220.67263853794475</td><td>-23.502746567943603</td><td>-0.0983885985018888</td></tr>
<tr><td>6229932491861252352</td><td>2015.5</td><td>220.73523627555818</td><td>-24.640708681077328</td><td>0.4328661904699682</td></tr>
<tr><td>6230016879379130240</td><td>2015.5</td><td>219.83052324579677</td><td>-24.2061244892915</td><td>0.3925985611610745</td></tr>
<tr><td>6230073366787772800</td><td>2015.5</td><td>221.47192783117885</td><td>-23.959139666294128</td><td>0.48625897986634425</td></tr>
<tr><td>6230145075563001728</td><td>2015.5</td><td>221.03467394339305</td><td>-23.58099620047661</td><td>0.4002784743473182</td></tr>
<tr><td>6230167031435813760</td><td>2015.5</td><td>220.7851856662174</td><td>-23.336372421616733</td><td>-0.8736321545140885</td></tr>
<tr><td>4687418695774232192</td><td>2015.5</td><td>16.869927634756948</td><td>-72.68242362167037</td><td>-0.48502626489731665</td></tr>
<tr><td>4687422891933697920</td><td>2015.5</td><td>15.901327641112253</td><td>-72.80447466138797</td><td>0.2995397868127374</td></tr>
<tr><td>4687420723006033280</td><td>2015.5</td><td>15.47314164379284</td><td>-72.89011101634064</td><td>-0.9978112875699006</td></tr>
<tr><td>4687422715871646976</td><td>2015.5</td><td>15.99138434019087</td><td>-72.82313785245728</td><td>-2.942541578796724</td></tr>
<tr><td>4687423815384413184</td><td>2015.5</td><td>15.944465951055934</td><td>-72.77907061819404</td><td>0.551112050315771</td></tr>
<tr><td>4687423098092057728</td><td>2015.5</td><td>16.011069579363397</td><td>-72.77136072133104</td><td>0.5275024949652448</td></tr>
<tr><td>4687420894804720512</td><td>2015.5</td><td>15.645744782387933</td><td>-72.86243763758765</td><td>-0.3893691578003666</td></tr>
<tr><td>4110043733924819712</td><td>2015.5</td><td>261.33786534447233</td><td>-25.232978342149263</td><td>0.16336768694395531</td></tr>
<tr><td>4110047449052774912</td><td>2015.5</td><td>261.1262641088297</td><td>-25.31967337502969</td><td>0.126451056290413</td></tr>
<tr><td>4110049437580528640</td><td>2015.5</td><td>260.94992109082744</td><td>-25.32242018581512</td><td>-0.025095711306698878</td></tr>
</table></div></div>
</div>
<p>You might notice that some values of <code class="docutils literal notranslate"><span class="pre">parallax</span></code> are negative. As <a class="reference external" href="https://www.cosmos.esa.int/web/gaia/archive-tips#negative%20parallax">this FAQ explains</a>, “Negative parallaxes are caused by errors in the observations.” Negative parallaxes have “no physical meaning,” but they can be a “useful diagnostic on the quality of the astrometric solution.”</p>
@@ -1106,7 +1106,7 @@ Be careful to keep your Python out of your ADQL!</p>
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>(None, &#39;1605622934969O&#39;)
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>(None, &#39;1605646069281O&#39;)
</pre></div>
</div>
</div>
@@ -1119,7 +1119,7 @@ Be careful to keep your Python out of your ADQL!</p>
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Removed jobs: &#39;[&#39;1605622934969O&#39;]&#39;.
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Removed jobs: &#39;[&#39;1605646069281O&#39;]&#39;.
</pre></div>
</div>
</div>
@@ -1216,7 +1216,7 @@ radial_velocity float64 km / s
Jobid: None
Phase: COMPLETED
Owner: None
Output file: sync_20201117092220.xml.gz
Output file: sync_20201117154752.xml.gz
Results: None
</pre></div>
</div>
@@ -1231,20 +1231,20 @@ Results: None
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=10</i>
<table id="table139709417540336" class="table-striped table-bordered table-condensed">
<table id="table140445173436528" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th><th>ra</th><th>dec</th><th>pmra</th><th>pmdec</th><th>parallax</th><th>parallax_error</th><th>radial_velocity</th></tr></thead>
<thead><tr><th></th><th>deg</th><th>deg</th><th>mas / yr</th><th>mas / yr</th><th>mas</th><th>mas</th><th>km / s</th></tr></thead>
<thead><tr><th>int64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th></tr></thead>
<tr><td>6230144152145537152</td><td>221.00484394613122</td><td>-23.650193344617016</td><td>-3.5074596301747727</td><td>-10.224921783269979</td><td>0.4472611806640159</td><td>0.1288335146382159</td><td>--</td></tr>
<tr><td>6230171669999288192</td><td>222.11986606839224</td><td>-24.50411126495661</td><td>-3.5454562059199444</td><td>-4.5898956770256065</td><td>0.01235077758559544</td><td>0.6798312067588314</td><td>--</td></tr>
<tr><td>6230030795072008832</td><td>220.6858032920676</td><td>-24.529155332809893</td><td>-7.395300108444131</td><td>-2.3509644395754723</td><td>0.9192193090012722</td><td>1.011426390802751</td><td>--</td></tr>
<tr><td>6230121401702753664</td><td>220.2681390809788</td><td>-23.90595652859401</td><td>-0.9310688845911029</td><td>-4.850975141945376</td><td>0.7892660162616956</td><td>0.612231874239708</td><td>--</td></tr>
<tr><td>6229987570521485440</td><td>219.69736802123325</td><td>-24.463333246855726</td><td>-1.2742408484284249</td><td>-3.404899385900498</td><td>0.2215366853699605</td><td>0.21596169286289862</td><td>--</td></tr>
<tr><td>6230018425567339520</td><td>220.1035725206795</td><td>-24.23214642244001</td><td>3.5001851583023207</td><td>-7.522436158423504</td><td>0.10694586740680614</td><td>0.8296685650840913</td><td>--</td></tr>
<tr><td>6230130266515510528</td><td>220.4226870525988</td><td>-23.73255151335769</td><td>-2.363789876365865</td><td>-4.703438038908609</td><td>0.3047725187302132</td><td>0.2970783741597157</td><td>--</td></tr>
<tr><td>6230061757492831616</td><td>221.17289130564805</td><td>-24.25689151102804</td><td>-2.857319870871607</td><td>-3.3752756010215696</td><td>0.5718461700819417</td><td>0.08382745553667581</td><td>--</td></tr>
<tr><td>2003409519814774528</td><td>339.93278128584706</td><td>54.693746629826066</td><td>-4.309526744320447</td><td>-4.179418290817069</td><td>-0.03422181968448189</td><td>0.16657261834688394</td><td>--</td></tr>
<tr><td>2003390901139218816</td><td>338.7103475641665</td><td>54.842371081247144</td><td>0.9558208039434155</td><td>-3.918955387981184</td><td>0.7072974894588037</td><td>0.4296262772904238</td><td>--</td></tr>
<tr><td>4687420551207336960</td><td>15.645304428598138</td><td>-72.89167644508707</td><td>1.2391150617590077</td><td>-0.44283475442839</td><td>-0.6198096756639259</td><td>0.2807306692481813</td><td>--</td></tr>
<tr><td>4687420345043286528</td><td>17.02520966291366</td><td>-72.58813710995527</td><td>0.5942325468950411</td><td>-0.9226900184931504</td><td>0.14195864820393828</td><td>0.2762606040704309</td><td>--</td></tr>
<tr><td>4687423403067577856</td><td>16.093293953294165</td><td>-72.76190688901534</td><td>4.282221460096154</td><td>-1.151311128485597</td><td>-2.35198675239641</td><td>0.8824042279602063</td><td>--</td></tr>
<tr><td>4687418695774232192</td><td>16.869927634756948</td><td>-72.68242362167037</td><td>3.757251484808558</td><td>-0.27830874302625963</td><td>-0.48502626489731665</td><td>0.5173500081780815</td><td>--</td></tr>
<tr><td>4687422891933697920</td><td>15.901327641112253</td><td>-72.80447466138797</td><td>1.620291207312266</td><td>-0.7541576089819368</td><td>0.2995397868127374</td><td>0.2764244386276099</td><td>--</td></tr>
<tr><td>4687422715871646976</td><td>15.99138434019087</td><td>-72.82313785245728</td><td>2.8954637100285368</td><td>4.214822457223685</td><td>-2.942541578796724</td><td>0.847035789335997</td><td>--</td></tr>
<tr><td>4687423815384413184</td><td>15.944465951055934</td><td>-72.77907061819404</td><td>4.313074669192134</td><td>-1.460344295147088</td><td>0.551112050315771</td><td>0.7664351946147043</td><td>--</td></tr>
<tr><td>4687423098092057728</td><td>16.011069579363397</td><td>-72.77136072133104</td><td>1.7413320910807104</td><td>-1.814893105748193</td><td>0.5275024949652448</td><td>0.3616348905813909</td><td>--</td></tr>
<tr><td>4687420894804720512</td><td>15.645744782387933</td><td>-72.86243763758765</td><td>0.40415899559873986</td><td>-2.0036523797855805</td><td>-0.3893691578003666</td><td>0.35767437939443886</td><td>--</td></tr>
<tr><td>4110047449052774912</td><td>261.1262641088297</td><td>-25.31967337502969</td><td>-2.4098547436119064</td><td>-1.301609808236016</td><td>0.126451056290413</td><td>0.7276250597861622</td><td>--</td></tr>
</table></div></div>
</div>
<p>Good so far.</p>
03_motion.html
+5 -5
View File
@@ -481,7 +481,7 @@ radial_velocity float64 km / s
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Row index=0</i>
<table id="table140510732444000">
<table id="table139758619539344">
<thead><tr><th>source_id</th><th>ra</th><th>dec</th><th>pmra</th><th>pmdec</th><th>parallax</th><th>parallax_error</th><th>radial_velocity</th></tr></thead>
<thead><tr><th></th><th>deg</th><th>deg</th><th>mas / yr</th><th>mas / yr</th><th>mas</th><th>mas</th><th>km / s</th></tr></thead>
<thead><tr><th>int64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th><th>float64</th></tr></thead>
@@ -971,8 +971,8 @@ Name: phi2, dtype: bool
<p>A Boolean <code class="docutils literal notranslate"><span class="pre">Series</span></code> is sometimes called a “mask” because we can use it to mask out some of the rows in a <code class="docutils literal notranslate"><span class="pre">DataFrame</span></code> and select the rest, like this:</p>
<div class="cell docutils container">
<div class="cell_input docutils container">
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">selected</span> <span class="o">=</span> <span class="n">df</span><span class="p">[</span><span class="n">mask</span><span class="p">]</span>
<span class="nb">type</span><span class="p">(</span><span class="n">selected</span><span class="p">)</span>
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">subset</span> <span class="o">=</span> <span class="n">df</span><span class="p">[</span><span class="n">mask</span><span class="p">]</span>
<span class="nb">type</span><span class="p">(</span><span class="n">subset</span><span class="p">)</span>
</pre></div>
</div>
</div>
@@ -982,7 +982,7 @@ Name: phi2, dtype: bool
</div>
</div>
</div>
<p><code class="docutils literal notranslate"><span class="pre">selected</span></code> is a <code class="docutils literal notranslate"><span class="pre">DataFrame</span></code> that contains only the rows from <code class="docutils literal notranslate"><span class="pre">df</span></code> that correspond to <code class="docutils literal notranslate"><span class="pre">True</span></code> values in <code class="docutils literal notranslate"><span class="pre">mask</span></code>.</p>
<p><code class="docutils literal notranslate"><span class="pre">subset</span></code> is a <code class="docutils literal notranslate"><span class="pre">DataFrame</span></code> that contains only the rows from <code class="docutils literal notranslate"><span class="pre">df</span></code> that correspond to <code class="docutils literal notranslate"><span class="pre">True</span></code> values in <code class="docutils literal notranslate"><span class="pre">mask</span></code>.</p>
<p>The previous mask selects all stars where <code class="docutils literal notranslate"><span class="pre">phi2</span></code> exceeds <code class="docutils literal notranslate"><span class="pre">phi2_min</span></code>; now we’ll select stars where <code class="docutils literal notranslate"><span class="pre">phi2</span></code> falls between <code class="docutils literal notranslate"><span class="pre">phi2_min</span></code> and <code class="docutils literal notranslate"><span class="pre">phi2_max</span></code>.</p>
<div class="cell docutils container">
<div class="cell_input docutils container">
@@ -1252,7 +1252,7 @@ Name: phi2, dtype: bool
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 17M Oct 19 12:05 gd1_dataframe.hdf5
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 17M Nov 18 19:06 gd1_dataframe.hdf5
</pre></div>
</div>
</div>
04_select.html
+14 -9
View File
@@ -419,8 +419,8 @@
<span class="n">pm2</span> <span class="o">=</span> <span class="n">selected</span><span class="p">[</span><span class="s1">&#39;pmdec&#39;</span><span class="p">]</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">pm1</span><span class="p">,</span> <span class="n">pm2</span><span class="p">,</span> <span class="s1">&#39;gx&#39;</span><span class="p">,</span> <span class="n">markersize</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.3</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xlabel</span><span class="p">(</span><span class="s1">&#39;Proper motion phi1 (ICRS frame)&#39;</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">ylabel</span><span class="p">(</span><span class="s1">&#39;Proper motion phi2 (ICRS frame)&#39;</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xlabel</span><span class="p">(</span><span class="s1">&#39;Proper motion ra (ICRS frame)&#39;</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">ylabel</span><span class="p">(</span><span class="s1">&#39;Proper motion dec (ICRS frame)&#39;</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xlim</span><span class="p">([</span><span class="o">-</span><span class="mi">10</span><span class="p">,</span> <span class="mi">5</span><span class="p">])</span>
<span class="n">plt</span><span class="o">.</span><span class="n">ylim</span><span class="p">([</span><span class="o">-</span><span class="mi">20</span><span class="p">,</span> <span class="mi">5</span><span class="p">]);</span>
@@ -451,6 +451,11 @@ and use the polygon as a selection criterion in an ADQL query.</p>
</div>
</div>
</div>
<p>NOTE: If you are using an older version of Pandas, you might not have <code class="docutils literal notranslate"><span class="pre">to_numpy()</span></code>; you can use <code class="docutils literal notranslate"><span class="pre">values</span></code> instead, like this:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">points</span> <span class="o">=</span> <span class="n">selected</span><span class="p">[[</span><span class="s1">&#39;pmra&#39;</span><span class="p">,</span><span class="s1">&#39;pmdec&#39;</span><span class="p">]]</span><span class="o">.</span><span class="n">values</span>
</pre></div>
</div>
<p>We’ll pass the points to <code class="docutils literal notranslate"><span class="pre">ConvexHull</span></code>, which returns an object that contains the results.</p>
<div class="cell docutils container">
<div class="cell_input docutils container">
@@ -462,7 +467,7 @@ and use the polygon as a selection criterion in an ADQL query.</p>
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;scipy.spatial.qhull.ConvexHull at 0x7f446b1e8bb0&gt;
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;scipy.spatial.qhull.ConvexHull at 0x7fd67bffd910&gt;
</pre></div>
</div>
</div>
@@ -778,10 +783,10 @@ INFO: Query finished. [astroquery.utils.tap.core]
parallax float64 mas Parallax 0
parallax_error float64 mas Standard error of parallax 0
radial_velocity float64 km / s Radial velocity 7295
Jobid: 1603132746237O
Jobid: 1605744463707O
Phase: COMPLETED
Owner: None
Output file: async_20201019143906.vot
Output file: async_20201118190743.vot
Results: None
</pre></div>
</div>
@@ -910,7 +915,7 @@ Results: None
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 756K Oct 19 14:39 gd1_candidates.hdf5
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 756K Nov 18 19:07 gd1_candidates.hdf5
</pre></div>
</div>
</div>
@@ -943,7 +948,7 @@ Results: None
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 1.6M Oct 19 14:39 gd1_candidates.csv
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 1.6M Nov 18 19:07 gd1_candidates.csv
</pre></div>
</div>
</div>
@@ -958,8 +963,8 @@ Results: None
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>,source_id,ra,dec,pmra,pmdec,parallax,parallax_error,radial_velocity,phi1,phi2,pm_phi1,pm_phi2
0,635559124339440000,137.58671691646745,19.1965441084838,-3.770521900009566,-12.490481778113859,0.7913934419894347,0.2717538145759051,,-59.63048941944396,-1.21648525150429,-7.361362712556612,-0.5926328820420083
1,635860218726658176,138.5187065217173,19.09233926905897,-5.941679495793577,-11.346409129876392,0.30745551377348623,0.19946557779138105,,-59.247329893833296,-2.0160784008206476,-7.527126084599517,1.7487794924398758
0,635559124339440000,137.58671691646745,19.1965441084838,-3.770521900009566,-12.490481778113859,0.7913934419894347,0.2717538145759051,,-59.63048941944396,-1.21648525150429,-7.3613627125974945,-0.5926328820644919
1,635860218726658176,138.5187065217173,19.09233926905897,-5.941679495793577,-11.346409129876392,0.30745551377348623,0.19946557779138105,,-59.247329893833296,-2.0160784008206476,-7.52712608464053,1.7487794924176672
</pre></div>
</div>
</div>
05_join.html
+7 -7
View File
@@ -443,7 +443,7 @@ We could write the entire table to a file, but that would take longer to transmi
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;!-- Produced with astropy.io.votable version 4.0.1.post1
&lt;!-- Produced with astropy.io.votable version 4.0.2
http://www.astropy.org/ --&gt;
&lt;VOTABLE version=&quot;1.4&quot; xmlns=&quot;http://www.ivoa.net/xml/VOTable/v1.4&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xsi:noNamespaceSchemaLocation=&quot;http://www.ivoa.net/xml/VOTable/v1.4&quot;&gt;
&lt;RESOURCE type=&quot;results&quot;&gt;
@@ -468,7 +468,7 @@ The size of the file is about 750 KB, so that’s not too bad.</p>
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 396K Oct 19 14:48 candidate_df.xml
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 396K Nov 18 19:21 candidate_df.xml
</pre></div>
</div>
</div>
@@ -568,7 +568,7 @@ INFO: Query finished. [astroquery.utils.tap.core]
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=7346</i>
<table id="table140665432275552" class="table-striped table-bordered table-condensed">
<table id="table140178070186304" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th></tr></thead>
<thead><tr><th>int64</th></tr></thead>
<tr><td>635559124339440000</td></tr>
@@ -669,7 +669,7 @@ INFO: Query finished. [astroquery.utils.tap.core]
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=3724</i>
<table id="table140665411011344" class="table-striped table-bordered table-condensed">
<table id="table140178046436112" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th><th>original_ext_source_id</th><th>angular_distance</th><th>number_of_neighbours</th><th>number_of_mates</th><th>best_neighbour_multiplicity</th><th>gaia_astrometric_params</th><th>source_id_2</th></tr></thead>
<thead><tr><th></th><th></th><th>arcsec</th><th></th><th></th><th></th><th></th><th></th></tr></thead>
<thead><tr><th>int64</th><th>int64</th><th>float64</th><th>int32</th><th>int16</th><th>int16</th><th>int16</th><th>int64</th></tr></thead>
@@ -798,7 +798,7 @@ dtype: int64
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;!-- Produced with astropy.io.votable version 4.0.1.post1
&lt;!-- Produced with astropy.io.votable version 4.0.2
http://www.astropy.org/ --&gt;
&lt;VOTABLE version=&quot;1.4&quot; xmlns=&quot;http://www.ivoa.net/xml/VOTable/v1.4&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xsi:noNamespaceSchemaLocation=&quot;http://www.ivoa.net/xml/VOTable/v1.4&quot;&gt;
&lt;RESOURCE type=&quot;results&quot;&gt;
@@ -914,7 +914,7 @@ ON ps.obj_id = external.original_ext_source_id
</div>
<div class="cell_output docutils container">
<div class="output text_html"><i>Table length=3724</i>
<table id="table140665408248800" class="table-striped table-bordered table-condensed">
<table id="table140178044101488" class="table-striped table-bordered table-condensed">
<thead><tr><th>source_id</th><th>g_mean_psf_mag</th><th>i_mean_psf_mag</th></tr></thead>
<thead><tr><th></th><th></th><th>mag</th></tr></thead>
<thead><tr><th>int64</th><th>float64</th><th>float64</th></tr></thead>
@@ -963,7 +963,7 @@ ON ps.obj_id = external.original_ext_source_id
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 96K Oct 19 14:49 gd1_photo.fits
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 96K Nov 18 19:22 gd1_photo.fits
</pre></div>
</div>
</div>
06_photo.html
+34 -34
View File
@@ -434,9 +434,9 @@ Before calling <code class="docutils literal notranslate"><span class="pre">plt.
<div class="cell_input docutils container">
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">matplotlib</span> <span class="k">as</span> <span class="nn">mpl</span>
<span class="k">if</span> <span class="n">IN_COLAB</span><span class="p">:</span>
<span class="n">coords</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">coords</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">IN_COLAB</span><span class="p">:</span>
<span class="n">mpl</span><span class="o">.</span><span class="n">use</span><span class="p">(</span><span class="s1">&#39;TkAgg&#39;</span><span class="p">)</span>
<span class="n">plot_cmd</span><span class="p">(</span><span class="n">photo_table</span><span class="p">)</span>
<span class="n">coords</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">ginput</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
@@ -454,16 +454,16 @@ Before calling <code class="docutils literal notranslate"><span class="pre">plt.
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[(0.2150537634408602, 17.548197203826344),
(0.3897849462365591, 18.94628403237675),
(0.5376344086021505, 19.902869757174393),
(0.7034050179211468, 20.601913171449596),
(0.8288530465949819, 21.300956585724798),
(0.6630824372759856, 21.52170713760118),
(0.4301075268817204, 20.785871964679913),
(0.27329749103942647, 19.71891096394408),
(0.17473118279569888, 18.688741721854306),
(0.17473118279569888, 17.95290654893304)]
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>[(0.2643369175627239, 17.84253127299485),
(0.3539426523297491, 18.799116997792495),
(0.47491039426523296, 19.682119205298015),
(0.6317204301075269, 20.454746136865342),
(0.7661290322580645, 20.785871964679913),
(0.8064516129032258, 21.41133186166299),
(0.5869175627240143, 21.300956585724798),
(0.39426523297491034, 20.565121412803535),
(0.22401433691756267, 19.240618101545255),
(0.19713261648745517, 18.02649006622517)]
</pre></div>
</div>
</div>
@@ -493,10 +493,10 @@ Before calling <code class="docutils literal notranslate"><span class="pre">plt.
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>(array([0.21505376, 0.38978495, 0.53763441, 0.70340502, 0.82885305,
0.66308244, 0.43010753, 0.27329749, 0.17473118, 0.17473118]),
array([17.5481972 , 18.94628403, 19.90286976, 20.60191317, 21.30095659,
21.52170714, 20.78587196, 19.71891096, 18.68874172, 17.95290655]))
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>(array([0.26433692, 0.35394265, 0.47491039, 0.63172043, 0.76612903,
0.80645161, 0.58691756, 0.39426523, 0.22401434, 0.19713262]),
array([17.84253127, 18.799117 , 19.68211921, 20.45474614, 20.78587196,
21.41133186, 21.30095659, 20.56512141, 19.2406181 , 18.02649007]))
</pre></div>
</div>
</div>
@@ -531,16 +531,16 @@ Before calling <code class="docutils literal notranslate"><span class="pre">plt.
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Path(array([[ 0.21505376, 17.5481972 ],
[ 0.38978495, 18.94628403],
[ 0.53763441, 19.90286976],
[ 0.70340502, 20.60191317],
[ 0.82885305, 21.30095659],
[ 0.66308244, 21.52170714],
[ 0.43010753, 20.78587196],
[ 0.27329749, 19.71891096],
[ 0.17473118, 18.68874172],
[ 0.17473118, 17.95290655]]), None)
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Path(array([[ 0.26433692, 17.84253127],
[ 0.35394265, 18.799117 ],
[ 0.47491039, 19.68211921],
[ 0.63172043, 20.45474614],
[ 0.76612903, 20.78587196],
[ 0.80645161, 21.41133186],
[ 0.58691756, 21.30095659],
[ 0.39426523, 20.56512141],
[ 0.22401434, 19.2406181 ],
[ 0.19713262, 18.02649007]]), None)
</pre></div>
</div>
</div>
@@ -954,7 +954,7 @@ Name: color, Length: 7346, dtype: bool
</div>
</div>
<div class="cell_output docutils container">
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>496
<div class="output text_plain highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>481
</pre></div>
</div>
</div>
@@ -962,7 +962,7 @@ Name: color, Length: 7346, dtype: bool
<p>Now we can use <code class="docutils literal notranslate"><span class="pre">inside</span></code> as a mask to select stars that fall inside the polygon.</p>
<div class="cell docutils container">
<div class="cell_input docutils container">
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">selected</span> <span class="o">=</span> <span class="n">merged</span><span class="p">[</span><span class="n">inside</span><span class="p">]</span>
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">selected2</span> <span class="o">=</span> <span class="n">merged</span><span class="p">[</span><span class="n">inside</span><span class="p">]</span>
</pre></div>
</div>
</div>
@@ -973,7 +973,7 @@ Name: color, Length: 7346, dtype: bool
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">plot_cmd</span><span class="p">(</span><span class="n">photo_table</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">xs</span><span class="p">,</span> <span class="n">ys</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">selected</span><span class="p">[</span><span class="s1">&#39;color&#39;</span><span class="p">],</span> <span class="n">selected</span><span class="p">[</span><span class="s1">&#39;mag&#39;</span><span class="p">],</span> <span class="s1">&#39;gx&#39;</span><span class="p">);</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">selected2</span><span class="p">[</span><span class="s1">&#39;color&#39;</span><span class="p">],</span> <span class="n">selected2</span><span class="p">[</span><span class="s1">&#39;mag&#39;</span><span class="p">],</span> <span class="s1">&#39;gx&#39;</span><span class="p">);</span>
</pre></div>
</div>
</div>
@@ -987,8 +987,8 @@ Name: color, Length: 7346, dtype: bool
<div class="cell_input docutils container">
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">plt</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span><span class="mf">2.5</span><span class="p">))</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">selected</span><span class="p">[</span><span class="s1">&#39;phi1&#39;</span><span class="p">]</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">selected</span><span class="p">[</span><span class="s1">&#39;phi2&#39;</span><span class="p">]</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">selected2</span><span class="p">[</span><span class="s1">&#39;phi1&#39;</span><span class="p">]</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">selected2</span><span class="p">[</span><span class="s1">&#39;phi2&#39;</span><span class="p">]</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="s1">&#39;ko&#39;</span><span class="p">,</span> <span class="n">markersize</span><span class="o">=</span><span class="mf">0.7</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.9</span><span class="p">)</span>
@@ -1018,7 +1018,7 @@ Name: color, Length: 7346, dtype: bool
<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">filename</span> <span class="o">=</span> <span class="s1">&#39;gd1_merged.hdf5&#39;</span>
<span class="n">merged</span><span class="o">.</span><span class="n">to_hdf</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s1">&#39;merged&#39;</span><span class="p">)</span>
<span class="n">selected</span><span class="o">.</span><span class="n">to_hdf</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s1">&#39;selected&#39;</span><span class="p">)</span>
<span class="n">selected2</span><span class="o">.</span><span class="n">to_hdf</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s1">&#39;selected2&#39;</span><span class="p">)</span>
</pre></div>
</div>
</div>
@@ -1030,7 +1030,7 @@ Name: color, Length: 7346, dtype: bool
</div>
</div>
<div class="cell_output docutils container">
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 2.0M Oct 19 17:21 gd1_merged.hdf5
<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>-rw-rw-r-- 1 downey downey 2.0M Nov 18 19:28 gd1_merged.hdf5
</pre></div>
</div>
</div>
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_sources/01_query.ipynb
+95 -95
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@@ -383,7 +383,7 @@
{
"data": {
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},
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@@ -808,7 +808,7 @@
{
"data": {
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},
"execution_count": 12,
@@ -846,11 +846,11 @@
"ref_epoch float64 yr Reference epoch 0\n",
" ra float64 deg Right ascension 0\n",
" dec float64 deg Declination 0\n",
" parallax float64 mas Parallax 2\n",
" parallax float64 mas Parallax 3\n",
"Jobid: None\n",
"Phase: COMPLETED\n",
"Owner: None\n",
"Output file: sync_20201117092213.xml.gz\n",
"Output file: sync_20201117154748.xml.gz\n",
"Results: None\n"
]
}
@@ -918,20 +918,20 @@
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@@ -940,16 +940,16 @@
" yr ... deg mas \n",
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@@ -1044,10 +1044,10 @@
" ra float64 deg Right ascension\n",
" dec float64 deg Declination\n",
" parallax float64 mas Parallax\n",
"Jobid: 1605622934969O\n",
"Jobid: 1605646069281O\n",
"Phase: COMPLETED\n",
"Owner: None\n",
"Output file: async_20201117092215.vot\n",
"Output file: async_20201117154749.vot\n",
"Results: None\n"
]
}
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},
"execution_count": 18,
@@ -1277,7 +1277,7 @@
{
"data": {
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"execution_count": 21,
@@ -1307,7 +1307,7 @@
"name": "stdout",
"output_type": "stream",
"text": [
"Removed jobs: '['1605622934969O']'.\n"
"Removed jobs: '['1605646069281O']'.\n"
]
}
],
@@ -1476,7 +1476,7 @@
"Jobid: None\n",
"Phase: COMPLETED\n",
"Owner: None\n",
"Output file: sync_20201117092220.xml.gz\n",
"Output file: sync_20201117154752.xml.gz\n",
"Results: None\n"
]
}
@@ -1495,20 +1495,20 @@
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@@ -1517,16 +1517,16 @@
" deg ... mas km / s \n",
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"4110047449052774912 261.1262641088297 ... 0.7276250597861622 --"
]
},
"execution_count": 29,
_sources/03_motion.ipynb
+63 -63
View File
@@ -331,7 +331,7 @@
"data": {
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@@ -592,7 +592,7 @@
},
{
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@@ -612,7 +612,7 @@
},
{
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@@ -621,7 +621,7 @@
"astropy.coordinates.sky_coordinate.SkyCoord"
]
},
"execution_count": 75,
"execution_count": 16,
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}
@@ -639,7 +639,7 @@
},
{
"cell_type": "code",
"execution_count": 76,
"execution_count": 17,
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{
@@ -648,7 +648,7 @@
"astropy.coordinates.sky_coordinate.SkyCoord"
]
},
"execution_count": 76,
"execution_count": 17,
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}
@@ -695,7 +695,7 @@
},
{
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"execution_count": 18,
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{
@@ -704,7 +704,7 @@
"astropy.coordinates.sky_coordinate.SkyCoord"
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},
"execution_count": 77,
"execution_count": 18,
"metadata": {},
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}
@@ -730,7 +730,7 @@
},
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"execution_count": 19,
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@@ -749,7 +749,7 @@
},
{
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"execution_count": 20,
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{
@@ -790,7 +790,7 @@
},
{
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"execution_count": 21,
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{
@@ -799,7 +799,7 @@
"astropy.table.table.Table"
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"execution_count": 21,
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@@ -810,7 +810,7 @@
},
{
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"execution_count": 81,
"execution_count": 22,
"metadata": {},
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{
@@ -819,7 +819,7 @@
"pyia.data.GaiaData"
]
},
"execution_count": 81,
"execution_count": 22,
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@@ -830,7 +830,7 @@
},
{
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{
@@ -839,7 +839,7 @@
"astropy.coordinates.sky_coordinate.SkyCoord"
]
},
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}
@@ -872,7 +872,7 @@
},
{
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"execution_count": 24,
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{
@@ -881,7 +881,7 @@
"(140340, 8)"
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@@ -904,7 +904,7 @@
},
{
"cell_type": "code",
"execution_count": 84,
"execution_count": 25,
"metadata": {},
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{
@@ -1014,7 +1014,7 @@
"4 0.486224 1.000000e+20 "
]
},
"execution_count": 84,
"execution_count": 25,
"metadata": {},
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}
@@ -1039,7 +1039,7 @@
},
{
"cell_type": "code",
"execution_count": 85,
"execution_count": 26,
"metadata": {},
"outputs": [
{
@@ -1048,7 +1048,7 @@
"(140340, 10)"
]
},
"execution_count": 85,
"execution_count": 26,
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}
@@ -1068,7 +1068,7 @@
},
{
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"execution_count": 27,
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{
@@ -1077,7 +1077,7 @@
"(140340, 12)"
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"execution_count": 27,
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}
@@ -1133,7 +1133,7 @@
},
{
"cell_type": "code",
"execution_count": 99,
"execution_count": 28,
"metadata": {},
"outputs": [
{
@@ -1142,7 +1142,7 @@
"pandas.core.series.Series"
]
},
"execution_count": 99,
"execution_count": 28,
"metadata": {},
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}
@@ -1163,7 +1163,7 @@
},
{
"cell_type": "code",
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"execution_count": 29,
"metadata": {},
"outputs": [
{
@@ -1172,7 +1172,7 @@
"pandas.core.series.Series"
]
},
"execution_count": 100,
"execution_count": 29,
"metadata": {},
"output_type": "execute_result"
}
@@ -1187,7 +1187,7 @@
},
{
"cell_type": "code",
"execution_count": 101,
"execution_count": 30,
"metadata": {},
"outputs": [
{
@@ -1196,7 +1196,7 @@
"dtype('bool')"
]
},
"execution_count": 101,
"execution_count": 30,
"metadata": {},
"output_type": "execute_result"
}
@@ -1214,7 +1214,7 @@
},
{
"cell_type": "code",
"execution_count": 102,
"execution_count": 31,
"metadata": {},
"outputs": [
{
@@ -1228,7 +1228,7 @@
"Name: phi2, dtype: bool"
]
},
"execution_count": 102,
"execution_count": 31,
"metadata": {},
"output_type": "execute_result"
}
@@ -1246,7 +1246,7 @@
},
{
"cell_type": "code",
"execution_count": 103,
"execution_count": 32,
"metadata": {},
"outputs": [
{
@@ -1255,28 +1255,28 @@
"pandas.core.frame.DataFrame"
]
},
"execution_count": 103,
"execution_count": 32,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"selected = df[mask]\n",
"type(selected)"
"subset = df[mask]\n",
"type(subset)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"`selected` is a `DataFrame` that contains only the rows from `df` that correspond to `True` values in `mask`.\n",
"`subset` is a `DataFrame` that contains only the rows from `df` that correspond to `True` values in `mask`.\n",
"\n",
"The previous mask selects all stars where `phi2` exceeds `phi2_min`; now we'll select stars where `phi2` falls between `phi2_min` and `phi2_max`."
]
},
{
"cell_type": "code",
"execution_count": 104,
"execution_count": 33,
"metadata": {},
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Astronomical Data in Python
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<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">pandas</span> <span class="k">as</span> <span class="nn">pd</span>
<span class="n">filename</span> <span class="o">=</span> <span class="s1">&#39;gd1_candidates.hdf5&#39;</span>
<span class="n">candidate_df</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">read_hdf</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s1">&#39;candidate_df&#39;</span><span class="p">)</span>
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<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="k">as</span> <span class="nn">plt</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">candidate_df</span><span class="p">[</span><span class="s1">&#39;phi1&#39;</span><span class="p">]</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">candidate_df</span><span class="p">[</span><span class="s1">&#39;phi2&#39;</span><span class="p">]</span>
<span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="s1">&#39;ko&#39;</span><span class="p">,</span> <span class="n">markersize</span><span class="o">=</span><span class="mf">0.3</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.3</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xlabel</span><span class="p">(</span><span class="s1">&#39;ra (degree GD1)&#39;</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">ylabel</span><span class="p">(</span><span class="s1">&#39;dec (degree GD1)&#39;</span><span class="p">);</span>
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