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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Advanced_Scientific_Data_Format</id>
		<title>Advanced Scientific Data Format - Revision history</title>
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		<updated>2026-04-11T03:05:15Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Advanced_Scientific_Data_Format&amp;diff=30898&amp;oldid=prev</id>
		<title>Effect2: Added Wikipedia link</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Advanced_Scientific_Data_Format&amp;diff=30898&amp;oldid=prev"/>
				<updated>2019-02-16T01:13:50Z</updated>
		
		<summary type="html">&lt;p&gt;Added Wikipedia link&lt;/p&gt;
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			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 01:13, 16 February 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample Files ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample Files ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://github.com/spacetelescope/asdf-standard/tree/b80568680ad4689f04e2f17ee8896a198dc76bbc/reference_files/1.0.0 Test files in the reference implementation source]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://github.com/spacetelescope/asdf-standard/tree/b80568680ad4689f04e2f17ee8896a198dc76bbc/reference_files/1.0.0 Test files in the reference implementation source]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;== Links ==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Wikipedia:Advanced Scientific Data Format]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Effect2</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Advanced_Scientific_Data_Format&amp;diff=30895&amp;oldid=prev</id>
		<title>Effect2: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Scientific Data formats |extensions={{ext|asdf}} |released=2015 }}  The '''Advanced Scientific Data Format''' ('''ASDF''', not to b...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Advanced_Scientific_Data_Format&amp;diff=30895&amp;oldid=prev"/>
				<updated>2019-02-16T01:09:04Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Scientific Data formats |extensions={{ext|asdf}} |released=2015 }}  The &amp;#039;&amp;#039;&amp;#039;Advanced Scientific Data Format&amp;#039;&amp;#039;&amp;#039; (&amp;#039;&amp;#039;&amp;#039;ASDF&amp;#039;&amp;#039;&amp;#039;, not to b...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=electronic&lt;br /&gt;
|subcat=Scientific Data formats&lt;br /&gt;
|extensions={{ext|asdf}}&lt;br /&gt;
|released=2015&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
The '''Advanced Scientific Data Format''' ('''ASDF''', not to be confused with the [[Adaptable Seismic Data Format]]) is a &amp;quot;proposed&amp;quot; replacement for [[Flexible Image Transport System]] and other astronomy data (namely, image) formats. Like FITS and similar formats ([[HDF]], etc.), it is meant to store both large amounts of data and metadata describing it in the same file. ASDF uses [[YAML]] to store this metadata. &amp;quot;Blocks&amp;quot; are compressed with either [[Gzip]] or [[Bzip]].&amp;lt;ref&amp;gt;https://asdf-standard.readthedocs.io/en/stable/file_layout.html#compression&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Identification ==&lt;br /&gt;
ASDF files start with the magic number {{magic|#ASDF}}, followed by a space and version information.&amp;lt;ref&amp;gt;https://asdf-standard.readthedocs.io/en/stable/file_layout.html#header&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Specifications ==&lt;br /&gt;
* [https://asdf-standard.readthedocs.io/en/stable/]&lt;br /&gt;
* [https://spacetelescope.github.io/asdf-standard/ASDFStandard-1.1.0dev.pdf A PDF version of the above. (As of the time of writing, this returns a 404, and the Wayback Machine gives a mysterious &amp;quot;this page does not exist&amp;quot; error.)]&lt;br /&gt;
&lt;br /&gt;
== Software ==&lt;br /&gt;
* [https://github.com/spacetelescope/asdf The reference implementation]&lt;br /&gt;
* [https://github.com/spacetelescope/asdf-cpp A C++ implementation that the link in the specification notes is not &amp;quot;currently feature complete&amp;quot;]&lt;br /&gt;
* [https://github.com/eschnett/asdf-cxx Another C++ implementation. Ditto.]&lt;br /&gt;
&lt;br /&gt;
== Sample Files ==&lt;br /&gt;
* [https://github.com/spacetelescope/asdf-standard/tree/b80568680ad4689f04e2f17ee8896a198dc76bbc/reference_files/1.0.0 Test files in the reference implementation source]&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&amp;lt;references /&amp;gt;&lt;/div&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

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