name | type | length | unit | ucd | description |
specObjID | bigint | 8 | | ID_CATALOG | Unique ID |
mjd | int | 4 | MJD | TIME_DATE | MJD of observation |
plate | smallint | 2 | | ID_PLATE | Plate ID |
tile | smallint | 2 | | ID_PLATE | Tile ID |
fiberID | smallint | 2 | | ID_FIBER | Fiber ID |
z | real | 4 | | REDSHIFT | Final Redshift |
zErr | real | 4 | | REDSHIFT ERROR | Redshift error |
zConf | real | 4 | | REDSHIFT STAT_PROBABILITY | Redshift confidence |
zStatus | smallint | 2 | | CODE_QUALITY | Redshift status |
specClass | smallint | 2 | | CLASS_OBJECT | Spectral Classification |
zWarning | int | 4 | | CODE_QUALITY | Warning Flags |
ra | float | 8 | deg | POS_EQ_RA_MAIN | ra in J2000 from SpecObj |
dec | float | 8 | deg | POS_EQ_DEC_MAIN | dec in J2000 from SpecObj |
cx | float | 8 | | POS_EQ_CART_X? | x of Normal unit vector in J2000 |
cy | float | 8 | | POS_EQ_CART_Y? | y of Normal unit vector in J2000 |
cz | float | 8 | | POS_EQ_CART_Z? | z of Normal unit vector in J2000 |
htmID | bigint | 8 | | CODE_HTM | 20 deep Hierarchical Triangular Mesh ID |
primTarget | int | 4 | | CODE_MISC | Specifies which primary target catagories the object was selected in. |
secTarget | int | 4 | | CODE_MISC | Specifies which secondary target catagories the object was selected in. |
sciencePrimary | smallint | 2 | | CODE_MISC | Deemed to be science-worthy (defines default view SpecObj) |
plateID | bigint | 8 | | ID_PLATE | Link to plate on which the spectrum was taken |
objType | int | 4 | | CLASS_OBJECT | object type (plPlugMap style) |
targetID | bigint | 8 | | ID_CATALOG | ID of Target |
targetObjID | bigint | 8 | | ID_CATALOG | ID of target PhotoObj |
targetMode | tinyint | 1 | | CLASS_OBJECT | 1: primary, 2: secondary, 3: family object. |
objID | bigint | 8 | | ID_CATALOG | Unique SDSS identifier composed from [skyVersion,rerun,run,camcol,field,obj]. |
skyVersion | int | 4 | | CODE_MISC | 0 = OPDB target, 1 = OPDB best |
run | int | 4 | | OBS_RUN | Run number |
rerun | int | 4 | | CODE_MISC | Rerun number |
camcol | int | 4 | | INST_ID | Camera column |
field | int | 4 | | ID_FIELD | Field number |
obj | int | 4 | | ID_NUMBER | The object id within a field. Usually changes between reruns of the same field. |
mode | int | 4 | | CLASS_OBJECT | 1: primary, 2: secondary, 3: family object. |
nChild | int | 4 | | NUMBER | Number of children if this is a deblened composite object. BRIGHT (in a flags sense) objects also have nchild==1, the non-BRIGHT sibling. |
type | int | 4 | | CLASS_OBJECT | Morphological type classification of the object. |
flags | bigint | 8 | | CODE_MISC | Photo Object Attribute Flags |
psfMag_u | real | 4 | mag | PHOT_SDSS_U | PSF flux |
psfMag_g | real | 4 | mag | PHOT_SDSS_G | PSF flux |
psfMag_r | real | 4 | mag | PHOT_SDSS_R | PSF flux |
psfMag_i | real | 4 | mag | PHOT_SDSS_I | PSF flux |
psfMag_z | real | 4 | mag | PHOT_SDSS_Z | PSF flux |
psfMagErr_u | real | 4 | mag | PHOT_SDSS_U ERROR | PSF flux error |
psfMagErr_g | real | 4 | mag | PHOT_SDSS_G ERROR | PSF flux error |
psfMagErr_r | real | 4 | mag | PHOT_SDSS_R ERROR | PSF flux error |
psfMagErr_i | real | 4 | mag | PHOT_SDSS_I ERROR | PSF flux error |
psfMagErr_z | real | 4 | mag | PHOT_SDSS_Z ERROR | PSF flux error |
fiberMag_u | real | 4 | mag | PHOT_SDSS_U | Flux in 3 arcsec diameter fiber radius |
fiberMag_g | real | 4 | mag | PHOT_SDSS_G | Flux in 3 arcsec diameter fiber radius |
fiberMag_r | real | 4 | mag | PHOT_SDSS_R | Flux in 3 arcsec diameter fiber radius |
fiberMag_i | real | 4 | mag | PHOT_SDSS_I | Flux in 3 arcsec diameter fiber radius |
fiberMag_z | real | 4 | mag | PHOT_SDSS_Z | Flux in 3 arcsec diameter fiber radius |
fiberMagErr_u | real | 4 | mag | PHOT_SDSS_U ERROR | Flux in 3 arcsec diameter fiber radius error |
fiberMagErr_g | real | 4 | mag | PHOT_SDSS_G ERROR | Flux in 3 arcsec diameter fiber radius error |
fiberMagErr_r | real | 4 | mag | PHOT_SDSS_R ERROR | Flux in 3 arcsec diameter fiber radius error |
fiberMagErr_i | real | 4 | mag | PHOT_SDSS_I ERROR | Flux in 3 arcsec diameter fiber radius error |
fiberMagErr_z | real | 4 | mag | PHOT_SDSS_Z ERROR | Flux in 3 arcsec diameter fiber radius error |
petroMag_u | real | 4 | mag | PHOT_SDSS_U | Petrosian flux |
petroMag_g | real | 4 | mag | PHOT_SDSS_G | Petrosian flux |
petroMag_r | real | 4 | mag | PHOT_SDSS_R | Petrosian flux |
petroMag_i | real | 4 | mag | PHOT_SDSS_I | Petrosian flux |
petroMag_z | real | 4 | mag | PHOT_SDSS_Z | Petrosian flux |
petroMagErr_u | real | 4 | mag | PHOT_SDSS_U ERROR | Petrosian flux error |
petroMagErr_g | real | 4 | mag | PHOT_SDSS_G ERROR | Petrosian flux error |
petroMagErr_r | real | 4 | mag | PHOT_SDSS_R ERROR | Petrosian flux error |
petroMagErr_i | real | 4 | mag | PHOT_SDSS_I ERROR | Petrosian flux error |
petroMagErr_z | real | 4 | mag | PHOT_SDSS_Z ERROR | Petrosian flux error |
modelMag_u | real | 4 | mag | PHOT_SDSS_U FIT_PARAM | better of DeV/Exp magnitude fit |
modelMag_g | real | 4 | mag | PHOT_SDSS_G FIT_PARAM | better of DeV/Exp magnitude fit |
modelMag_r | real | 4 | mag | PHOT_SDSS_R FIT_PARAM | better of DeV/Exp magnitude fit |
modelMag_i | real | 4 | mag | PHOT_SDSS_I FIT_PARAM | better of DeV/Exp magnitude fit |
modelMag_z | real | 4 | mag | PHOT_SDSS_Z FIT_PARAM | better of DeV/Exp magnitude fit |
modelMagErr_u | real | 4 | mag | PHOT_SDSS_U ERROR | better of DeV/Exp magnitude fit error |
modelMagErr_g | real | 4 | mag | PHOT_SDSS_G ERROR | better of DeV/Exp magnitude fit error |
modelMagErr_r | real | 4 | mag | PHOT_SDSS_R ERROR | better of DeV/Exp magnitude fit error |
modelMagErr_i | real | 4 | mag | PHOT_SDSS_I ERROR | better of DeV/Exp magnitude fit error |
modelMagErr_z | real | 4 | mag | PHOT_SDSS_Z ERROR | better of DeV/Exp magnitude fit error |
mRrCc_r | real | 4 | | FIT_PARAM | Adaptive ( + ) |
mRrCcErr_r | real | 4 | | FIT_PARAM ERROR | Error in adaptive ( + ) |
status | int | 4 | | CODE_MISC | Status of the object in the survey |
photoRa | float | 8 | deg | POS_EQ_RA_MAIN | J2000 right ascension (r') from Best |
photoDec | float | 8 | deg | POS_EQ_DEC_MAIN | J2000 declination (r') from Best |
extinction_u | real | 4 | mag | PHOT_EXTINCTION_GAL | Reddening in each filter |
extinction_g | real | 4 | mag | PHOT_EXTINCTION_GAL | Reddening in each filter |
extinction_r | real | 4 | mag | PHOT_EXTINCTION_GAL | Reddening in each filter |
extinction_i | real | 4 | mag | PHOT_EXTINCTION_GAL | Reddening in each filter |
extinction_z | real | 4 | mag | PHOT_EXTINCTION_GAL | Reddening in each filter |
bestPrimTarget | int | 4 | | CODE_MISC | Specifies which primary target catagories the object was selected in. |
bestSecTarget | int | 4 | | CODE_MISC | Specifies which secondary target catagories the object was selected in. |
priority | int | 4 | | CODE_MISC | Priority bits |
fieldID | bigint | 8 | | ID_FIELD | Link to the field this object is in |
dered_u | real | 4 | mag | PHOT_SDSS_U | Simplified mag, corrected for reddening: modelMag-reddening |
dered_g | real | 4 | mag | PHOT_SDSS_G | Simplified mag, corrected for reddening: modelMag-reddening |
dered_r | real | 4 | mag | PHOT_SDSS_R | Simplified mag, corrected for reddening: modelMag-reddening |
dered_i | real | 4 | mag | PHOT_SDSS_I | Simplified mag, corrected for reddening: modelMag-reddening |
dered_z | real | 4 | mag | PHOT_SDSS_Z | Simplified mag, corrected for reddening: modelMag-reddening |
size | real | 4 | | | computed: =SQRT(mRrCc_r/2.0) |
tileRun | smallint | 2 | | ID_VERSION | run of tiling software |
tiPriority | int | 4 | | CODE_MISC | collision priority given during tiling |
tiMask | int | 4 | | CODE_MISC | mask bits to determine what happened during tiling |
collisionGroupID | int | 4 | | ID_CATALOG | unique ID of collisionGroup in this tiling run |