<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2025-12-16T16:36:00Z" status="active" updated="2026-09-01T12:06:43Z" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogResource"><title>SIDC geomagnetic impact forecast</title><shortName>sidc_geomagnetic</shortName><identifier>ivo://ksb-orb.dc/sidc_geomagnetic_forecast/q/epn_core</identifier><curation><publisher>SIDC: Solar Influences Data analysis Center</publisher><creator><name>PLACEHOLDER_CREATOR</name></creator><date role="Updated">2026-09-01T12:32:05Z</date><contact><name>PLACEHOLDER_CONTACT</name><address>Royal Observatory of Belgium, Avenue circulaire 3, 1180 Bruxelles,
BELGIQUE</address><email>sidc-support@oma.be</email></contact></curation><content><subject>the-sun</subject><subject>solar-atmosphere</subject><subject>solar-physics</subject><subject>solar-system-astronomy</subject><description>Forecast of geomagnetic impact</description><referenceURL>https://vo-tap.oma.be/tableinfo/sidc_geomagnetic_forecast.epn_core</referenceURL><contentLevel>General</contentLevel><contentLevel>University</contentLevel><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://ksb-orb.dc/tap">ROB Virtual Observatory Data Center TAP service</relatedResource></relationship></content><tableset><schema><name>sidc_geomagnetic_forecast</name><title>SIDC geomagnetic impact forecast</title><description> *** SIDC geomagnetic impact forecast *** This service provides
geomagnetic impact forecasts, as evaluated by the SIDC forecaster on
duty.</description><table><name>sidc_geomagnetic_forecast.epn_core</name><description>Forecast of geomagnetic impact</description><column><name>granule_uid</name><description>Unique identifier for the geomagnetic impact forecast.</description><ucd>meta.id</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>geomagnetic_analysismethod</name><description>Method used to determine the geomagnetic impact.</description><ucd>meta</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>geomagnetic_issuetime</name><description>Issuetime of the geomagnetic forecast.</description><unit>d</unit><ucd>time</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>startofimpact</name><description>Estimated start time of the geomagnetic impact.</description><unit>d</unit><ucd>time</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>startofimpact_uncertainty</name><description>Uncertainty in the start time of the geomagnetic impact (in hours).</description><unit>hours</unit><ucd>stat.error;time</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>impact_probability</name><description>Estimated probability of occurence of the geomagnetic impact.</description><ucd>stat.probability</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>impact_maxk</name><description>Estimated maximum K index.</description><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>impact_maxk_uncertainty</name><description>Uncertainty in the estimated K index.</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>