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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Characterization of Pulsar Sources for X-ray Navigation · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/1711.08507/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/1711.08507/feed.xml" rel="self" type="application/rss+xml" /><item><title>Characterization of Pulsar Sources for X-ray Navigation — mentioned by perihelions</title><link>https://news.ycombinator.com/item?id=44508305</link><guid isPermaLink="false">urn:hackerpapers:mention:1711.08507:44508305</guid><pubDate>Wed, 09 Jul 2025 10:35:01 GMT</pubDate><description>&lt;p&gt;That&amp;#x27;s a remarkable result. Looks like (if I haven&amp;#x27;t misunderstood) SEXTANT a software experiment that piggybacks on the raw datastream from the NICER x-ray telescope, and estimates the phases of the time-of-arrival of bright millisecond pulsars (in x-ray photons). From differential phases (at microsecond accuracy), they infer differential position (kilometers). I understand it&amp;#x27;s eight (8) pulsars in the catalog. https://arxiv.org/abs/1711.08507 I wonder if it&amp;#x27;s really that easy to extend this to interstellar scales. If you move 300 km, a 1-ms source is reset to its original phase. Go out to…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/1711.08507/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>astro-ph.IM</category></item></channel></rss>
