Family


Tag Class corresponding to objects that are neither primary nor secondary but are member of a deblended family of objects.


Aliases: sxFamily, family, bad, sxBad

Inheritance:
Family <-PhotoTag

Members inherited from PhotoTag
Member Name/AliasesDatatypeDescription
objID;
id_;
object_ID 		int64 The unique identifier for SDSS photometric objects. It is a bit-encoded integer of run,rerun,camcol,field,objid.
objType;
objc_type;
objtype;
type 		int32 Classification of the object. This is an enumerated type which assigns a morphological classification to an object. 
  OBJ_TYPE_UNK,         * Unknown     
  OBJ_TYPE_CR,          * Cosmic ray  
  OBJ_TYPE_DEFECT,      * Defect      
  OBJ_TYPE_GALAXY,      * Galaxy      
  OBJ_TYPE_GHOST,       * Ghost       
  OBJ_TYPE_KNOWNOBJ,    * Known object
  OBJ_TYPE_STAR,        * Star        
  OBJ_TYPE_TRAIL,       * Star trail  
  OBJ_TYPE_SKY,         * Sky         
  OBJ_TYPE_NTYPE        * ???
you can also use 
AR_OBJECT_TYPE_..
 instead of 
OBJ_TYPE_..
status int32 The status field is a bit mask specifying the status of the object in the survey. The bits are defined as: 
  AR_OBJECT_STATUS_SET        = 0x1,    * This object's status has been set 
                                        * in reference to its own run.      
  AR_OBJECT_STATUS_GOOD       = 0x2,    * Good as determined by its         
                                        * object flags.  Absence implies    
                                        * bad.  This flag is set by         
                                        * "setObjectStatus".                
  AR_OBJECT_STATUS_DUPLICATE  = 0x4,    * This object has one or more       
                                        * duplicate detections in an        
                                        * adjacent field of the same Frames 
                                        * Pipeline Run.  This is set by     
                                        * "setObjectStatus".                
  AR_OBJECT_STATUS_OK_RUN     = 0x10,   * Located within the primary range  
                                        * of rows for this field.  This is  
                                        * usable object.  This flag is set  
                                        * by "setObjectStatus".             
  AR_OBJECT_STATUS_RESOLVED   = 0x20,   * This object has been resolved     
                                        * against other runs.               
  AR_OBJECT_STATUS_PSEGMENT   = 0x40,   * Belongs to a PRIMARY segment.     
                                        * This does not imply that this is a
                                        * primary object.                   
  AR_OBJECT_STATUS_FIRST_FIELD= 0x100,  * Belongs to the first field in its 
                                        * segment.  Used to distinguish     
                                        * objects in fields shared by two   
                                        * segments.                         
  AR_OBJECT_STATUS_OK_SCANLINE= 0x200,  * Lies within valid nu range        
                                        * for its scanline.                 
  AR_OBJECT_STATUS_OK_STRIPE  = 0x400,  * Lies within valid eta range for   
                                        * its stripe.                       
  AR_OBJECT_STATUS_SECONDARY  = 0x1000, * This is a secondary survey object.
  AR_OBJECT_STATUS_PRIMARY    = 0x2000, * This is a primary survey object.  
  AR_OBJECT_STATUS_TARGET     = 0x4000  * This is a spectroscopic target.
objFlags;
objc_flags;
flag1;
objc_flags2;
flag2;
objFlags2 		int64 Detection Flags
  OBJECT_CANONICAL_CENTER   =                0x1, * used canonical, not local, centre   
  OBJECT_BRIGHT             =                0x2, * detected by Bright Objects          
  OBJECT_EDGE               =                0x4, * object is too close to edge of frame
  OBJECT_BLENDED            =                0x8, * object is/was blended               
  OBJECT_CHILD              =               0x10, * object is a child                   
  OBJECT_PEAKCENTER         =               0x20, * given centre position of peak pixel 
  OBJECT_NODEBLEND          =               0x40, * no deblending attempted             
  OBJECT_NOPROFILE          =               0x80, * too small to estimate a profile     
  OBJECT_NOPETRO            =              0x100, * no Petrosian radius                 
  OBJECT_MANYPETRO          =              0x200, * more than one Petrosian radius      
  OBJECT_NOPETRO_BIG        =              0x400, * no Petrosian radius as object is too big 
  OBJECT_DEBLEND_TOO_MANY_PEAKS =          0x800, * too many peaks to deblend      
  OBJECT_CR                 =             0x1000, * contains a CR pixel                
  OBJECT_MANYR50            =             0x2000, * more than one 50% radius            
  OBJECT_MANYR90            =             0x4000, * more than one 90% radius            
  OBJECT_BAD_RADIAL         =             0x8000, * some low S/N radial points          
  OBJECT_INCOMPLETE_PROFILE =            0x10000, * r_P includes off-frame pixels    
  OBJECT_INTERP             =            0x20000, * object contains interpolated pixels 
  OBJECT_SATUR              =            0x40000, * object contains saturated pixels    
  OBJECT_NOTCHECKED         =            0x80000, * object contains NOTCHECKED pixels   
  OBJECT_SUBTRACTED         =           0x100000, * object had wings subtracted         
  OBJECT_NOSTOKES           =           0x200000, * object has no measured stokes params
  OBJECT_BADSKY             =           0x400000, * sky level so bad that object is -ve 
  OBJECT_PETROFAINT         =           0x800000, * >= 1 Petrosian radius too faint     
  OBJECT_TOO_LARGE          =          0x1000000, * object is too large                 
  OBJECT_DEBLENDED_AS_PSF   =          0x2000000, * deblender treated obj as PSF     
  OBJECT_DEBLEND_PRUNED     =          0x4000000, * deblender pruned peak list         
  OBJECT_ELLIPFAINT         =          0x8000000, * Centre's fainter than desired elliptical isophote 
  OBJECT_BINNED1            =         0x10000000, * object was found in 1x1 binned image
  OBJECT_BINNED2            =         0x20000000, * object was found in 2x2 binned image
  OBJECT_BINNED4            =         0x40000000, * object was found in 4x4 binned image
  OBJECT_MOVED              =         0x80000000, * Object appears to have moved during 
                                                  * the exposure.  May have been        
                                                  * deblended as a moving object.       
  OBJECT_DEBLENDED_AS_MOVING =       0x100000000, * deblended as a moving object        
  OBJECT_NODEBLEND_MOVING   =        0x200000000, * no deblend of moving object         
  OBJECT_TOO_FEW_DETECTIONS =        0x400000000, * too few detections to deblend       
  OBJECT_BAD_MOVING_FIT     =        0x800000000, * Fit to moving object was too poor   
  OBJECT_STATIONARY         =       0x1000000000, * velocity is consistent with zero    
  OBJECT_PEAKS_TOO_CLOSE    =       0x2000000000, * at least some peaks were too close, 
                                                  * and thus merged                     
  OBJECT_MEDIAN_CENTRE      =       0x4000000000, * centre is of median-smoothed image  
  OBJECT_LOCAL_EDGE         =       0x8000000000, * per-band centre's too near edge     
  OBJECT_BAD_COUNTS_ERROR   =      0x10000000000, * psf|fiberCountsErr is bad/unknown   
  OBJECT_BAD_MOVING_FIT_CHILD =    0x20000000000, * moving child's fit was too poor 
  OBJECT_DEBLEND_UNASSIGNED_FLUX = 0x40000000000, * deblender failed to assign   
                                                  * enough of flux to children   
  OBJECT_SATUR_CENTER       =      0x80000000000, * object's centre's saturated         
  OBJECT_INTERP_CENTER      =     0x100000000000, * object's centre is very close to at 
                                                  * least one interpolated pixel        
  OBJECT_DEBLENDED_AT_EDGE  =     0x200000000000, * object is deblended though EDGE     
  OBJECT_DEBLEND_NOPEAK     =     0x400000000000, * object had no detected peak         
  OBJECT_PSF_FLUX_INTERP    =     0x800000000000, * a signifcant amount of PSF's flux   
                                                  * is interpolated                     
  OBJECT_TOO_FEW_GOOD_DETECTIONS=0x1000000000000, * too few good detections to deblend as moving            
  OBJECT_CENTER_OFF_AIMAGE  =    0x2000000000000, * at least one peak's centre lay   
                                                  * off the atlas image in some band 
  OBJECT_MEASURED           = 0x1000000000000000, * object has been measured            
  OBJECT_GROWN_MERGED       = 0x2000000000000000, * growing led to a merger             
  OBJECT_HAS_CENTER         = 0x4000000000000000, * OBJC has a canonical centre         
  OBJECT_MEASURE_BRIGHT     = 0x8000000000000000  * object should be measured bright
primTarget int32 The primTarget field is a bit mask specifying which primary target catagories the object was selected in. The bits are defined as: 
  AR_TARGET_QSO_HIZ           = 0x1,
  AR_TARGET_QSO_CAP           = 0x2,
  AR_TARGET_QSO_SKIRT         = 0x4,
  AR_TARGET_QSO_FIRST_CAP     = 0x8,
  AR_TARGET_QSO_FIRST_SKIRT   = 0x10,
  AR_TARGET_QSO_FAINT         = 0x2000000,
  AR_TARGET_QSO_REJECT        = 0x20000000,
  AR_TARGET_GALAXY_RED        = 0x20,
  AR_TARGET_GALAXY_RED_II     = 0x4000000,
  AR_TARGET_GALAXY            = 0x40,
  AR_TARGET_GALAXY_BIG        = 0x80,
  AR_TARGET_GALAXY_BRIGHT_CORE= 0x100,
  AR_TARGET_ROSAT_A           = 0x200,
  AR_TARGET_ROSAT_B           = 0x400,
  AR_TARGET_ROSAT_C           = 0x800,
  AR_TARGET_ROSAT_D           = 0x1000,
  AR_TARGET_ROSAT_E           = 0x8000000,
  AR_TARGET_STAR_BHB          = 0x2000,
  AR_TARGET_STAR_CARBON       = 0x4000,
  AR_TARGET_STAR_BROWN_DWARF  = 0x8000,
  AR_TARGET_STAR_SUB_DWARF    = 0x10000,
  AR_TARGET_STAR_CATY_VAR     = 0x20000,
  AR_TARGET_STAR_RED_DWARF    = 0x40000,
  AR_TARGET_STAR_WHITE_DWARF  = 0x80000,
  AR_TARGET_STAR_PN           = 0x10000000,
  AR_TARGET_SERENDIP_BLUE     = 0x100000,
  AR_TARGET_SERENDIP_FIRST    = 0x200000,
  AR_TARGET_SERENDIP_RED      = 0x400000,
  AR_TARGET_SERENDIP_DISTANT  = 0x800000,
  AR_TARGET_SERENDIP_MANUAL   = 0x1000000
secTarget int32 The secTarget field is a bit mask specifying which secondary target catagories the object was selected in. The bits are defined as: 
  TAR_TARGET_LIGHT_TRAP        = 0x1,
  TAR_TARGET_REDDEN_STD        = 0x2,
  TAR_TARGET_TEST_TARGET       = 0x4,
  TAR_TARGET_QA                = 0x8,
  TAR_TARGET_SKY               = 0x10,
  TAR_TARGET_SPECTROPHOTO_STD  = 0x20,
  TAR_TARGET_GUIDE_STAR        = 0x40,
  TAR_TARGET_BUNDLE_HOLE       = 0x80,
  TAR_TARGET_QUALITY_HOLE      = 0x100,
  TAR_TARGET_HOT_STD           = 0x200
rowC;
objc_rowc;
objRowc 		float32 Nominal row position (r' coordinates) in pixels
colC;
objc_colc;
objColc 		float32 Nominal column position (r' coordinates) in pixels
lStar_r;
star_L_r 		float32 Star likelihood, r band
lExp_r;
exp_L_r 		float32 Exponential disk fit likelihood, r band
lDeV_r;
deV_L_r 		float32 DeVaucouler fit likelihood, r band
u float64 Better of DeV/Exp mag fit. (luptitudes)
g float64 Better of DeV/Exp mag fit. (luptitudes)
r float64 Better of DeV/Exp mag fit. (luptitudes)
i float64 Better of DeV/Exp mag fit. (luptitudes)
z float64 Better of DeV/Exp mag fit. (luptitudes)
psfMag;
psfCounts 		float32[5] PSF flux. (luptitudes)
fiberMag;
fiberCounts 		float32[5] Flux in 3 arcsec diameter fiber radius. (luptitudes)
petroMag;
petroCounts 		float32[5] Petrosian flux. (luptitudes)
petroRad float32[5] Petrosian radius. (arcsecs)
reddening float32[5] Reddening in each filter (magnitudes)
petroR50_r float32 r-band radius containing 50% of Petrosian flux. (arcsecs)
petroR90_r float32 r-band radius containing 90% of Petrosian flux. (arcsecs)
rho float32 Surface brightness parameter (5 * log petro-rad_i)
cx float64 Unit x-vector for RA+dec.
cy float64 Unit y-vector for RA+dec.
cz float64 Unit z-vector for RA+dec.
htmID int64 Level 20 HTM ID
modelFluxID int32 KD-tree ID for flux space (model flux).
psfFluxID int32 KD-tree ID for flux space (PSF flux).
petroFluxID int32 KD-tree ID for flux space (Petrosian flux).
nChild;
nchild;
nChildren 		int32 Number of children if this is a composite object that has been deblended. BRIGHT (in a flags sense) objects also have nchild == 1, the non-BRIGHT sibling.
photoobj;
PhotoObj;
obj;
pobj 		OneAssoc(PhotoObj) Link to the corresponding photo object.
profile;
Profile 		OneAssoc(Profile) Link to the profile parameters for this object
field;
Field 		OneAssoc(Field) Link to the corresponding field object
child ManyAssoc(PhotoTag) Link to the deblended children of this object, if any
parent OneAssoc(PhotoTag) Link to the parent object if this object has been deblended
secondary ManyAssoc(PhotoTag) Link to all secondaries of this object if it is a primary
primary ManyAssoc(PhotoTag) Link to the primary object(s) if this object is a secondary. How can you have more than one primary? It can happen that the secondary object was observed under worse seeing conditions and that it has not been deblended into two or more objects whereas the primary has.
seclist ManyAssoc(PhotoTag) Link to other secondary objects if this is a secondary object.
photoz;
PhotoZ 		OneAssoc(PhotoZ) Link to the photometric redshift object.
specobj;
SpecObj;
spec 		ManyAssoc(SpecObj) Link to the spectrum of this object, if observed.
externalcatalog;
ExternalCatalog;
extern 		ManyAssoc(ExternalCatalog) Link to external catalog associations, if any.

Data Members of Family:
Member Name/AliasesDatatypeDescription

© Copyright 2000 Peter Z. Kunszt Alex S. Szalay , Ani R. Thakar
and The SDSS Collaboration