SSSource
LSST-computed per-source quantities. 1:1 relationship with DiaSource.
Columns
| name | datatype | description | unit | nullable | ivoa:ucd |
|---|---|---|---|---|---|
| phaseAngle | float | Phase angle | deg | true | |
| heliocentricDist | float | Heliocentric distance | AU | true | |
| topocentricDist | float | Topocentric distace | AU | true | |
| heliocentricX | float | Cartesian heliocentric X coordinate (at the emit time) | AU | true | |
| heliocentricY | float | Cartesian heliocentric Y coordinate (at the emit time) | AU | true | |
| heliocentricZ | float | Cartesian heliocentric Z coordinate (at the emit time) | AU | true | |
| heliocentricVX | float | Cartesian heliocentric X velocity (at the emit time) | AU | true | |
| heliocentricVY | float | Cartesian heliocentric Y velocity (at the emit time) | AU | true | |
| heliocentricVZ | float | Cartesian heliocentric Z velocity (at the emit time) | AU | true | |
| topocentricX | float | Cartesian topocentric X coordinate (at the emit time) | AU | true | |
| topocentricY | float | Cartesian topocentric Y coordinate (at the emit time) | AU | true | |
| topocentricZ | float | Cartesian topocentric Z coordinate (at the emit time) | AU | true | |
| topocentricVX | float | Cartesian topocentric X velocity (at the emit time) | AU | true | |
| topocentricVY | float | Cartesian topocentric Y velocity (at the emit time) | AU | true | |
| topocentricVZ | float | Cartesian topocentric Z velocity (at the emit time) | AU | true | |
| ssObjectId foreign key indexed | long | Unique identifier of the object. | true | meta.id;src | |
| residualRa | double | Residual R.A. vs. ephemeris | deg | true | |
| residualDec | double | Residual Dec vs. ephemeris | deg | true | |
| diaSourceId primary key foreign key indexed | long | Unique identifier of the observation | true | meta.id;src | |
| galacticL | double | Galactic longitude | deg | true | |
| galacticB | double | Galactic latitute | deg | true | |
| eclipticLambda | double | Ecliptic longitude | deg | true | |
| eclipticBeta | double | Ecliptic latitude | deg | true |
Indexes
| Index | Definition | Description |
|---|---|---|
| idx_SSSource_diaSourceId | diaSourceId | Unique index on the diaSourceId column; accelerates joins between DiaSource and SSSource |
| idx_SSSource_ssObjectId | ssObjectId | Non-unique index on the ssObjectId column; accelerates retrieval of single-epoch data for SSObjects |
Constraints
| Constraint | Type | Definition | Description |
|---|---|---|---|
| fk_SSSource_DiaSource | ForeignKey |
Columns: diaSourceId
References: DiaSource.diaSourceId
|
Link an SSSource to its associated DiaSource |
| fk_SSSource_SSObject | ForeignKey |
Columns: ssObjectId
References: SSObject.ssObjectId
|
Link an SSObject to its associated SSSources |