Table information for 'alerce_tap.lsst_ss_detection'

General

Table 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.

This table is available for ADQL queries and through the TAP endpoint.

Resource 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.

For a list of all services and tables belonging to this table's resource, see Information on resource 'ALeRCE Multi-Survey Object Catalog'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:alerce_tap_lsst_,
  year=2026,
  title={{LSST} Solar System Detections},
  author={{ALeRCE} Team},
  url={http://tap.alerce.online/tableinfo/alerce_tap.lsst_ss_detection},
  howpublished={{VO} resource provided by the {ALeRCE} {TAP} service}
}

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
created_date Created_date Date record was created N/A time.creation
designation Designation Unpacked primary provisional designation for this solar system object N/A meta.id;src
diadistancerank Diadistancerank Ranking based on the distance between this DIA source and the predicted position of the solar system object, with 1 being the closest match N/A meta.code.class
eclbeta Eclbeta Ecliptic latitude deg pos.ecliptic.lat
ecllambda Ecllambda Ecliptic longitude deg pos.ecliptic.lon
elongation Elongation Solar elongation, the angular separation of the object from the Sun on the celestial sphere deg pos.angDistance
ephdec Ephdec Predicted ICRS declination computed from orbit propagation at observation time deg pos.eq.dec;meta.modelled;pos.ephem
ephoffset Ephoffset Total angular offset between observed and predicted position on the celestial sphere arcsec pos.angDistance;stat.fit.omc
ephoffsetalongtrack Ephoffsetalongtrack Angular offset along the direction of motion between observed and predicted position arcsec pos.angDistance;stat.fit.omc
ephoffsetcrosstrack Ephoffsetcrosstrack Angular offset perpendicular to the direction of motion between observed and predicted position arcsec pos.angDistance;stat.fit.omc
ephoffsetdec Ephoffsetdec Angular offset in declination between observed and predicted position (observed minus predicted) deg pos.eq.dec;stat.fit.omc
ephoffsetra Ephoffsetra Angular offset in right ascension between observed and predicted position (observed minus predicted) deg pos.eq.ra;stat.fit.omc
ephra Ephra Predicted ICRS right ascension computed from orbit propagation at observation time deg pos.eq.ra;meta.modelled;pos.ephem
ephrate Ephrate Predicted total angular rate of motion on the sky arcsec/h pos.pm;pos.ephem
ephratedec Ephratedec Predicted angular rate of motion along declination arcsec/h pos.pm;pos.eq.dec;pos.ephem
ephratera Ephratera Predicted angular rate of motion along right ascension arcsec/h pos.pm;pos.eq.ra;pos.ephem
ephvmag Ephvmag Predicted V-band magnitude computed from orbit propagation at observation time mag phot.mag;em.opt.V;meta.modelled;pos.ephem
gallat Gallat Galactic latitude deg pos.galactic.lat
gallon Gallon Galactic longitude deg pos.galactic.lon
helio_vtot Helio_vtot Heliocentric total velocity magnitude AU/d phys.veloc;pos.heliocentric
helio_vx Helio_vx Heliocentric velocity component along X axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.x;pos.heliocentric
helio_vy Helio_vy Heliocentric velocity component along Y axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.y;pos.heliocentric
helio_vz Helio_vz Heliocentric velocity component along Z axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.z;pos.heliocentric
helio_x Helio_x Heliocentric X position component in ICRS reference frame AU pos.cartesian.x;pos.heliocentric
helio_y Helio_y Heliocentric Y position component in ICRS reference frame AU pos.cartesian.y;pos.heliocentric
helio_z Helio_z Heliocentric Z position component in ICRS reference frame AU pos.cartesian.z;pos.heliocentric
heliorange Heliorange Heliocentric range, the distance from the Sun to the object AU phys.distance
heliorangerate Heliorangerate Heliocentric range rate, the radial velocity of the object relative to the Sun AU/d phys.veloc
measurement_id Measurement_id Unique identifier of this DIA source observation N/A meta.id
phaseangle Phaseangle Phase angle, the angle between the Sun and observer as seen from the object deg pos.phaseAng
ssobjectid Ssobjectid LSST solar system object identifier N/A meta.id;src
topo_vtot Topo_vtot Topocentric total velocity magnitude AU/d phys.veloc
topo_vx Topo_vx Topocentric velocity component along X axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.x
topo_vy Topo_vy Topocentric velocity component along Y axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.y
topo_vz Topo_vz Topocentric velocity component along Z axis in ICRS reference frame AU/d phys.veloc;pos.cartesian.z
topo_x Topo_x Topocentric X position component in ICRS reference frame relative to the observer AU pos.cartesian.x
topo_y Topo_y Topocentric Y position component in ICRS reference frame relative to the observer AU pos.cartesian.y
topo_z Topo_z Topocentric Z position component in ICRS reference frame relative to the observer AU pos.cartesian.z
toporange Toporange Topocentric range, the distance from the observer to the object AU phys.distance
toporangerate Toporangerate Topocentric range rate, the radial velocity of the object relative to the observer AU/d phys.veloc

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.