<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2018-03-13T08:44:00Z" status="active" updated="2024-12-27T08:31:02Z" version="1.2" 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>Gaia DR2 epoch fluxes</title><shortName>gaia.dr2epochflu</shortName><identifier>ivo://org.gavo.dc/gaia/q2/dr2epochflux</identifier><curation><publisher>The GAVO DC team</publisher><creator><name>GAIA Collaboration</name></creator><date role="Updated">2022-01-26T13:38:59Z</date><date role="updated">2018-12-05</date><contact><name>GAVO Data Centre Team</name><address>Mönchhofstrasse 12-14, D-69120 Heidelberg</address><email>gavo@ari.uni-heidelberg.de</email><telephone>+49 6221 54 1837</telephone></contact></curation><content><subject>stars</subject><subject>surveys</subject><subject>astrometry</subject><subject>proper-motions</subject><subject>time-domain-astronomy</subject><description>
A table of the light curves released with Gaia DR2 (about half a million
in total).  In each Gaia band (G, BP, RP), we give epochs, fluxes and
their errors in arrays.  We do not include the quality flags (DR2: “may
be safely ignored for many general purpose applications”).  You can
access them through the associated datalink service if you select
source_id.  You will usually join this table with gaia.dr2light.

We have also removed all entries with NaN observation times; hence,
the array lengths in the different bands can be significantly different,
and the indices in transit_ids do not always correspond to the
indices in the time series.

Furthermore, we only give fluxes and their errors here rather than
magnitudes.  Fluxes can be turned into magnitude using::

	mag = -2.5 log10(flux)+zero point,

where the zero points assumed for Gaia DR2 are
25.6884±0.0018 in G, 25.3514±0.0014 in BP, and
24.7619±0.0019 in RP (VEGAMAG).</description><referenceURL>http://dc.g-vo.org/tableinfo/gaia.dr2epochflux</referenceURL><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://org.gavo.dc/tap">GAVO Data Center TAP service</relatedResource></relationship></content><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface role="std" version="1.1" xsi:type="vs:ParamHTTP"><accessURL use="full">http://dc.g-vo.org/tap</accessURL><mirrorURL>https://dc.g-vo.org/tap</mirrorURL></interface></capability><facility>Gaia</facility><coverage><spatial>0/0-11</spatial><temporal>57174 57174</temporal><spectral>1.986e-19 4.966e-19</spectral><waveband>Optical</waveband></coverage><tableset><schema><name>gaia</name><title>Selections from Gaia Data Release 2 (DR2)</title><description>
This schema contains data re-published from the official
Gaia mirrors (such as ivo://uni-heidelberg.de/gaia/tap) either to
support combining its data with local tables (the various Xlite tables)
or to make the data more accessible to VO clients (e.g., epoch fluxes).

Other Gaia-related data is found in, among others, the gdr2dist, gdr3mock,
gdr3spec, gedr3auto, gedr3dist, gedr3mock, and gedr3spur schemas.</description><table><name>gaia.dr2epochflux</name><title>Gaia DR2 epoch fluxes</title><description>
A table of the light curves released with Gaia DR2 (about half a million
in total).  In each Gaia band (G, BP, RP), we give epochs, fluxes and
their errors in arrays.  We do not include the quality flags (DR2: “may
be safely ignored for many general purpose applications”).  You can
access them through the associated datalink service if you select
source_id.  You will usually join this table with gaia.dr2light.

We have also removed all entries with NaN observation times; hence,
the array lengths in the different bands can be significantly different,
and the indices in transit_ids do not always correspond to the
indices in the time series.

Furthermore, we only give fluxes and their errors here rather than
magnitudes.  Fluxes can be turned into magnitude using::

	mag = -2.5 log10(flux)+zero point,

where the zero points assumed for Gaia DR2 are
25.6884±0.0018 in G, 25.3514±0.0014 in BP, and
24.7619±0.0019 in RP (VEGAMAG).</description><nrows>550737</nrows><column><name>source_id</name><description>Unique source identifier. Note that this *cannot* be matched against the DR1 source_id.</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">long</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>transit_id</name><description>Transit unique identifier. For a given object, a transit comprises the different Gaia observations (SM, AF, BP, RP and RVS) obtained for each focal plane crossing. NOTE: Where invalid observations have been removed, transit_id *cannot* be joined with times and fluxes.</description><ucd>meta.version</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">long</dataType><flag>nullable</flag></column><column><name>g_transit_time</name><description>The field-of-view transit averaged observation times for the G-band observations. This is given for barycentric TCB in JD-2,455,197.5.</description><unit>d</unit><ucd>time.epoch</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>g_transit_flux</name><description>G-band fluxes for the transit, for combination with g_transit_time_mjd. Here, this is a combination of individual SM-AF CCD fluxes</description><unit>s**-1</unit><ucd>phot.flux;em.opt.V</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>g_transit_flux_error</name><description>The error in G-band flux.</description><unit>s**-1</unit><ucd>stat.error;phot.flux;em.opt.V</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>rp_obs_time</name><description>The observation time of the RP CCD transit. This is given for barycentric TCB in JD-2,455,197.5.</description><unit>d</unit><ucd>time.epoch</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>rp_flux</name><description>RP-band integrated fluxes, for combination with rp_obs_time</description><unit>s**-1</unit><ucd>phot.flux;em.opt.R</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>rp_flux_error</name><description>The error in RP-band flux.</description><unit>s**-1</unit><ucd>stat.error;phot.flux;em.opt.R</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bp_obs_time</name><description>The observation time of the BP CCD transit. This is given for barycentric TCB in JD-2,455,197.5.</description><unit>d</unit><ucd>time.epoch</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>bp_flux</name><description>BP-band integrated fluxes, for combination with bp_obs_time</description><unit>s**-1</unit><ucd>phot.flux;em.opt.B</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bp_flux_error</name><description>The error in BP-band flux.</description><unit>s**-1</unit><ucd>stat.error;phot.flux;em.opt.B</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>solution_id</name><description>A DPAC id for the toolchain used to produce these particular time series. It is given to facilitate comparison with ESAC data products.</description><ucd>meta.version</ucd><dataType xsi:type="vs:VOTableType">long</dataType></column><foreignKey><targetTable>gaia.dr2light</targetTable><fkColumn><fromColumn>source_id</fromColumn><targetColumn>source_id</targetColumn></fkColumn></foreignKey></table></schema></tableset></ri:Resource>