| Contains merged sources for every field in the SSA. |
| Each field within the SSA is covered by four plates in passbands B, R and I with R being covered twice at different times. This results in four-plate multi-colour, multi-epoch data which are merged into a single source catalogue for general science exploitation. This table contains the associated merged records created from the records in table Detection, along with a full astrometric solution (including proper motions) computed from the available position measures. The most useful subset of image morphological descriptors are also propagated into this table for ease of use. |
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| objID | bigint | 8 | Unique identifier of merged source | ID_MAIN | ||
| objIDB | bigint | 8 | objID for B band detection merged into this object | 0 | ID_ASSOCIATED | |
| objIDR1 | bigint | 8 | objID for R1 band detection merged into this object | 0 | ID_ASSOCIATED | |
| objIDR2 | bigint | 8 | objID for R2 band detection merged into this object | 0 | ID_ASSOCIATED | |
| objIDI | bigint | 8 | objID for I band detection merged into this object | 0 | ID_ASSOCIATED | |
| htmId | bigint | 8 | Hierarchical Triangular Mesh (20-deep) of centroid | POS_GENERAL | ||
| epoch | real | 4 | year | Epoch of position (variance weighted mean epoch of available measures) | TIME_EPOCH | |
| ra | float | 8 | degrees | Mean RA, computed from detections merged in this catalogue | POS_EQ_RA_MAIN | |
| dec | float | 8 | degrees | Mean Dec, computed from detections merged in this catalogue | POS_EQ_DEC_MAIN | |
| sigRA | float | 8 | degrees | Uncertainty in RA (formal random error not inc. systematic errors) | ERROR | |
| sigDec | float | 8 | degrees | Uncertainty in Dec (formal random error not inc. systematic errors) | ERROR | |
| cx | float | 8 | Cartesian x of unit (ra,dec) vector on celestial sphere | POS_EQ_X | ||
| cy | float | 8 | Cartesian y of unit (ra,dec) vector on celestial sphere | POS_EQ_Y | ||
| cz | float | 8 | Cartesian z of unit (ra,dec) vector on celestial sphere | POS_EQ_Z | ||
| muAcosD | real | 4 | mas/yr | Proper motion in RA direction | -0.99999995e9 | POS_EQ_PMRA |
| muD | real | 4 | mas/yr | Proper motion in Dec direction | -0.99999995e9 | POS_EQ_PMDEC |
| sigMuAcosD | real | 4 | mas/yr | Error on proper motion in RA direction | -0.99999995e9 | ERROR |
| sigMuD | real | 4 | mas/yr | Error on proper motion in Dec direction | -0.99999995e9 | ERROR |
| chi2 | real | 4 | Chi-squared value of proper motion solution | -0.99999995e9 | FIT_CHI2 | |
| Nplates | tinyint | 1 | No. of plates used for this proper motion measurement | NUMBER | ||
| classMagB | real | 4 | mag | B band magnitude selected by B image class | -99.999995 | PHOT_PHG_BJ |
| classMagR1 | real | 4 | mag | R1 band magnitude selected by R1 image class | -99.999995 | PHOT_PHG_R |
| classMagR2 | real | 4 | mag | R2 band magnitude selected by R2 image class | -99.999995 | PHOT_PHG_R |
| classMagI | real | 4 | mag | I band magnitude selected by I image class | -99.999995 | PHOT_PHG_I |
| gCorMagB | real | 4 | mag | B band magnitude assuming object is galaxy | -99.999995 | PHOT_PHG_BJ |
| gCorMagR1 | real | 4 | mag | R1 band magnitude assuming object is galaxy | -99.999995 | PHOT_PHG_R |
| gCorMagR2 | real | 4 | mag | R2 band magnitude assuming object is galaxy | -99.999995 | PHOT_PHG_R |
| gCorMagI | real | 4 | mag | I band magnitude assuming object is galaxy | -99.999995 | PHOT_PHG_I |
| sCorMagB | real | 4 | mag | B band magnitude assuming object is star | -99.999995 | PHOT_PHG_BJ |
| sCorMagR1 | real | 4 | mag | R1 band magnitude assuming object is star | -99.999995 | PHOT_PHG_R |
| sCorMagR2 | real | 4 | mag | R2 band magnitude assuming object is star | -99.999995 | PHOT_PHG_R |
| sCorMagI | real | 4 | mag | I band magnitude assuming object is star | -99.999995 | PHOT_PHG_I |
| meanClass | tinyint | 1 | Estimate of image class based on unit-weighted mean of individual classes | CLASS_OBJECT | ||
| classB | tinyint | 1 | Image classification from B band detection | 0 | CLASS_OBJECT | |
| classR1 | tinyint | 1 | Image classification from R1 band detection | 0 | CLASS_OBJECT | |
| classR2 | tinyint | 1 | Image classification from R2 band detection | 0 | CLASS_OBJECT | |
| classI | tinyint | 1 | Image classification from I band detection | 0 | CLASS_OBJECT | |
| ellipB | real | 4 | Ellipticity of B band detection | -0.99999995e9 | PHYS_ELLIPTICITY | |
| ellipR1 | real | 4 | Ellipticity of R1 band detection | -0.99999995e9 | PHYS_ELLIPTICITY | |
| ellipR2 | real | 4 | Ellipticity of R2 band detection | -0.99999995e9 | PHYS_ELLIPTICITY | |
| ellipI | real | 4 | Ellipticity of I band detection | -0.99999995e9 | PHYS_ELLIPTICITY | |
| qualB | int | 4 | Bitwise quality flag from B band detection | -1 | CODE_QUALITY | |
| qualR1 | int | 4 | Bitwise quality flag from R1 band detection | -1 | CODE_QUALITY | |
| qualR2 | int | 4 | Bitwise quality flag from R2 band detection | -1 | CODE_QUALITY | |
| qualI | int | 4 | Bitwise quality flag from I band detection | -1 | CODE_QUALITY | |
| blendB | int | 4 | Blend flag from B band detection | -99999999 | CODE_MULT_INDEX | |
| blendR1 | int | 4 | Blend flag from R1 band detection | -99999999 | CODE_MULT_INDEX | |
| blendR2 | int | 4 | Blend flag from R2 band detection | -99999999 | CODE_MULT_INDEX | |
| blendI | int | 4 | Blend flag from I band detection | -99999999 | CODE_MULT_INDEX | |
| prfStatB | real | 4 | N(0,1) | Profile statistic from B band detection | -0.99999995e9 | CLASS_STAR/GALAXY |
| prfStatR1 | real | 4 | N(0,1) | Profile statistic from R1 band detection | -0.99999995e9 | CLASS_STAR/GALAXY |
| prfStatR2 | real | 4 | N(0,1) | Profile statistic from R2 band detection | -0.99999995e9 | CLASS_STAR/GALAXY |
| prfStatI | real | 4 | N(0,1) | Profile statistic from I band detection | -0.99999995e9 | CLASS_STAR/GALAXY |
| l | real | 4 | degrees | The Galactic longitude of the source | POS_GAL_LON | |
| b | real | 4 | degrees | The Galactic latitude of the source | POS_GAL_LAT | |
| d | real | 4 | degrees | The great-circle distance of the source from the Galactic centre | POS_ANG_DIST_REL | |
| Ebmv | real | 4 | mag | The estimated foreground reddening at this position from Schlegel et al. (1998) | PHOT_EXTINCTION_GAL | |
| Total length | 262 |