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<ri:Resource created="2025-06-04T14:00:00Z" status="active" updated="2025-08-13T13:30:29Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:voe="http://www.ivoa.net/xml/VOEventRegExt/v2" 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://www.ivoa.net/xml/VOEventRegExt/v2 http://vo.ari.uni-heidelberg.de/docs/schemata/VOEventRegExt.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:DataService"><title>GCN VOEvent Streams From Fermi-GBM</title><shortName>fermi_gbm_alert</shortName><identifier>ivo://org.gavo.dc/std/gcn-fermi/fermi-grb</identifier><curation><publisher>GCN</publisher><creator><name>The Fermi GBM Team</name></creator><date role="updated">2035-01-01T00:00:00</date><contact><name>The Fermi GBM Team</name><email>support@gcn.nasa.gov</email></contact></curation><content><subject>gamma-ray-astronomy</subject><subject>gamma-ray-bursts</subject><subject>solar-flares</subject><subject>time-domain-astronomy</subject><description>VOEvent alerts produced from transient detections resulting from
observations with the NASA Fermi Gamma-ray Burst Monitor. Events
should be reported within tens to hundreds of seconds; expect about
one event a day, where most events correspond to either gamma ray
burst, solar flares, or particles.There are streams giving alerts and
localizations for gamma ray transients. Multiple localizations are
produced for each event initially onboard the spacecraft
(FERMI_GBM_FLT_POS), then improved via automated processing on the
ground (FERMI_GBM_GND_POS), and the final position processed with
improved analysis by more sophisticated software or the Burst Advocate
(FERMI_GBM_FIN_POS). The FERMI_GBM SUBTHRESH stream has events
produced from a ground pipeline processing of the data looking for
transients that were below the on-board trigger threshold level and
are typically used for coincidence searches with other data streams.</description><source format="bibcode">2009ApJ...702..791M</source><referenceURL>http://dc.g-vo.org/std/gcn-fermi/fermi-grb/info</referenceURL><contentLevel>Research</contentLevel></content><rights>public</rights><capability standardID="ivo://ivoa.net/std/voevent"><interface role="std" standardID="ivo://ivoa.net/std/voevent#acc-kafka" xsi:type="voe:StreamEndpoint"><accessURL use="full">x-kafka://kafka.gcn.nasa.gov?topic=gcn.classic.voevent.FERMI_GBM_ALERT</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/voevent"><interface role="std" standardID="ivo://ivoa.net/std/voevent#acc-kafka" xsi:type="voe:StreamEndpoint"><accessURL use="full">x-kafka://kafka.gcn.nasa.gov?topic=gcn.classic.voevent.FERMI_GBM_FLT_POS</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/voevent"><interface role="std" standardID="ivo://ivoa.net/std/voevent#acc-kafka" xsi:type="voe:StreamEndpoint"><accessURL use="full">x-kafka://kafka.gcn.nasa.gov?topic=gcn.classic.voevent.FERMI_GBM_GND_POS</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/voevent"><interface role="std" standardID="ivo://ivoa.net/std/voevent#acc-kafka" xsi:type="voe:StreamEndpoint"><accessURL use="full">x-kafka://kafka.gcn.nasa.gov?topic=gcn.classic.voevent.FERMI_GBM_FIN_POS</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/voevent"><interface role="std" standardID="ivo://ivoa.net/std/voevent#acc-kafka" xsi:type="voe:StreamEndpoint"><accessURL use="full">x-kafka://kafka.gcn.nasa.gov?topic=gcn.classic.voevent.FERMI_GBM_SUBTHRESH</accessURL></interface></capability><capability><description>A browser-based archive of the events recorded.</description><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://gcn.gsfc.nasa.gov/fermi_grbs.html</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#capabilities"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">http://dc.g-vo.org/std/gcn-fermi/fermi-grb/capabilities</accessURL><mirrorURL>https://dc.g-vo.org/std/gcn-fermi/fermi-grb/capabilities</mirrorURL></interface></capability><facility>Fermi Gammar-ray Space Telescope</facility><instrument>Fermi Gamma-ray Burst Monitor GBM</instrument><coverage><spatial>0/0-11</spatial><temporal>54686 64328</temporal><spectral>1.281741297e-15 6.408706483e-12</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">http://dc.g-vo.org/std/gcn-fermi/fermi-grb/coverage</footprint><waveband>Gamma-ray</waveband></coverage></ri:Resource>