<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2026-01-19T00:00:00Z" status="active" updated="2026-02-24T04:54:18Z" 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>LSST Solar System Detections</title><shortName>alerce_tap.lsst_</shortName><identifier>ivo://x-unregistred/alerce_tap/multisurvey_lowercase/lsst_ss_detection</identifier><curation><publisher>ALeRCE (Automatic Learning for the Rapid Classification of Events)</publisher><creator><name>ALeRCE Team</name><logo>https://tap.alerce.online/favicon.png</logo></creator><date role="Updated">2026-04-11T22:13:50Z</date><contact><name>ALeRCE Team</name><address>Beauchef 851, Edificio Norte, piso 6. Santiago, Chile.</address><email>alerce.broker@gmail.com</email></contact></curation><content><subject>astronomy, objects</subject><subject>surveys</subject><subject>transients</subject><subject>time-series</subject><description>
Individual LSST detections associated with solar system objects, including
observing geometry (phase angle, elongation, ranges), ephemeris predictions,
ephemeris offsets (O-C residuals), and heliocentric/topocentric state vectors
in ICRS coordinates.</description><referenceURL>http://tap.alerce.online/tableinfo/alerce_tap.lsst_ss_detection</referenceURL></content><tableset><schema><name>alerce_tap</name><title>ALeRCE Multi-Survey Object Catalog</title><description>
Multi-survey astronomical object catalog containing astrometric and
statistical information from multiple surveys. This table provides
aggregated properties for astronomical objects including position,
detection statistics, and temporal coverage.</description><table><name>alerce_tap.lsst_ss_detection</name><title>LSST Solar System Detections</title><description>
Individual LSST detections associated with solar system objects, including
observing geometry (phase angle, elongation, ranges), ephemeris predictions,
ephemeris offsets (O-C residuals), and heliocentric/topocentric state vectors
in ICRS coordinates.</description><column><name>measurement_id</name><description>Unique identifier of this DIA source observation</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">long</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>ssobjectid</name><description>LSST solar system object identifier</description><ucd>meta.id;src</ucd><dataType xsi:type="vs:VOTableType">long</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>designation</name><description>Unpacked primary provisional designation for this solar system object</description><ucd>meta.id;src</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ecllambda</name><description>Ecliptic longitude</description><unit>deg</unit><ucd>pos.ecliptic.lon</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>eclbeta</name><description>Ecliptic latitude</description><unit>deg</unit><ucd>pos.ecliptic.lat</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>gallon</name><description>Galactic longitude</description><unit>deg</unit><ucd>pos.galactic.lon</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>gallat</name><description>Galactic latitude</description><unit>deg</unit><ucd>pos.galactic.lat</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>elongation</name><description>Solar elongation, the angular separation of the object from the Sun on the celestial sphere</description><unit>deg</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>phaseangle</name><description>Phase angle, the angle between the Sun and observer as seen from the object</description><unit>deg</unit><ucd>pos.phaseAng</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>toporange</name><description>Topocentric range, the distance from the observer to the object</description><unit>AU</unit><ucd>phys.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>toporangerate</name><description>Topocentric range rate, the radial velocity of the object relative to the observer</description><unit>AU/d</unit><ucd>phys.veloc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>heliorange</name><description>Heliocentric range, the distance from the Sun to the object</description><unit>AU</unit><ucd>phys.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>heliorangerate</name><description>Heliocentric range rate, the radial velocity of the object relative to the Sun</description><unit>AU/d</unit><ucd>phys.veloc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephra</name><description>Predicted ICRS right ascension computed from orbit propagation at observation time</description><unit>deg</unit><ucd>pos.eq.ra;meta.modelled;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ephdec</name><description>Predicted ICRS declination computed from orbit propagation at observation time</description><unit>deg</unit><ucd>pos.eq.dec;meta.modelled;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ephvmag</name><description>Predicted V-band magnitude computed from orbit propagation at observation time</description><unit>mag</unit><ucd>phot.mag;em.opt.V;meta.modelled;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephrate</name><description>Predicted total angular rate of motion on the sky</description><unit>arcsec/h</unit><ucd>pos.pm;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephratera</name><description>Predicted angular rate of motion along right ascension</description><unit>arcsec/h</unit><ucd>pos.pm;pos.eq.ra;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephratedec</name><description>Predicted angular rate of motion along declination</description><unit>arcsec/h</unit><ucd>pos.pm;pos.eq.dec;pos.ephem</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephoffset</name><description>Total angular offset between observed and predicted position on the celestial sphere</description><unit>arcsec</unit><ucd>pos.angDistance;stat.fit.omc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephoffsetra</name><description>Angular offset in right ascension between observed and predicted position (observed minus predicted)</description><unit>deg</unit><ucd>pos.eq.ra;stat.fit.omc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ephoffsetdec</name><description>Angular offset in declination between observed and predicted position (observed minus predicted)</description><unit>deg</unit><ucd>pos.eq.dec;stat.fit.omc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ephoffsetalongtrack</name><description>Angular offset along the direction of motion between observed and predicted position</description><unit>arcsec</unit><ucd>pos.angDistance;stat.fit.omc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ephoffsetcrosstrack</name><description>Angular offset perpendicular to the direction of motion between observed and predicted position</description><unit>arcsec</unit><ucd>pos.angDistance;stat.fit.omc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_x</name><description>Heliocentric X position component in ICRS reference frame</description><unit>AU</unit><ucd>pos.cartesian.x;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_y</name><description>Heliocentric Y position component in ICRS reference frame</description><unit>AU</unit><ucd>pos.cartesian.y;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_z</name><description>Heliocentric Z position component in ICRS reference frame</description><unit>AU</unit><ucd>pos.cartesian.z;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_vx</name><description>Heliocentric velocity component along X axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.x;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_vy</name><description>Heliocentric velocity component along Y axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.y;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_vz</name><description>Heliocentric velocity component along Z axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.z;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>helio_vtot</name><description>Heliocentric total velocity magnitude</description><unit>AU/d</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_x</name><description>Topocentric X position component in ICRS reference frame relative to the observer</description><unit>AU</unit><ucd>pos.cartesian.x</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_y</name><description>Topocentric Y position component in ICRS reference frame relative to the observer</description><unit>AU</unit><ucd>pos.cartesian.y</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_z</name><description>Topocentric Z position component in ICRS reference frame relative to the observer</description><unit>AU</unit><ucd>pos.cartesian.z</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_vx</name><description>Topocentric velocity component along X axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.x</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_vy</name><description>Topocentric velocity component along Y axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.y</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_vz</name><description>Topocentric velocity component along Z axis in ICRS reference frame</description><unit>AU/d</unit><ucd>phys.veloc;pos.cartesian.z</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>topo_vtot</name><description>Topocentric total velocity magnitude</description><unit>AU/d</unit><ucd>phys.veloc</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>diadistancerank</name><description>Ranking based on the distance between this DIA source and the predicted position of the solar system object, with 1 being the closest match</description><ucd>meta.code.class</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>created_date</name><description>Date record was created</description><ucd>time.creation</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>