<?xml version="1.0" encoding="utf-8"?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-08T06:19:14Z</responseDate><request identifier="oai:gaia.aip.de:tables/gaiadr3.nss_acceleration_astro" metadataPrefix="oai_dc">https://gaia.aip.de/oai</request><GetRecord><record><header><identifier>oai:gaia.aip.de:tables/gaiadr3.nss_acceleration_astro</identifier><datestamp>2022-06-13</datestamp><setSpec>tables</setSpec></header><metadata><oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:identifier>10.17876/gaia/dr.3/72</dc:identifier><dc:title>NSS astrometric models with an acceleration solution</dc:title><dc:creator>European Space Agency (ESA)</dc:creator><dc:creator>DPAC Consortium</dc:creator><dc:subject>Astronomy</dc:subject><dc:publisher>Leibniz Institute for Astrophysics Potsdam (AIP)</dc:publisher><dc:description>&lt;p&gt;This table contains non-single-star astrometric models for sources having a non-linear proper motion which is compatible with an acceleration solution. Several possible models are hosted within the same table and they are indicated by the field &lt;code&gt;nss_solution_type&lt;/code&gt;. The description of this latter lists all possible solution types considered for this release. Only a selection of parameters hosted in this table are provided here, depending on the solution. The details of those is given in the description of field &lt;code&gt;bit_index&lt;/code&gt;, which can also be used to extract the relevant elements of the correlation vector &lt;code&gt;corr_vec&lt;/code&gt;.Details about the formalism used to derive the parameters in this table are given in the on-line documentation, see Chapter&amp;nbsp;&lt;a href="chap:cu4nss"&gt;cu4nss&lt;/a&gt;.&lt;/p&gt;</dc:description><dc:date>2022-06-13</dc:date><dc:rights>BY_NC_IG</dc:rights><dc:type>Dataset</dc:type></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>