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DetectionFlags values, e.g. column infoFlag in table Detection, and XinfoFlag (X one of g,r,i,z,y) in StackObjectThin

These values are also listed in system table DetectionFlags.

Flag NameFlag value in hexadecimal formFlag value in decimal formDescription of the flag
DEFAULT0x000000000Initial value; resets all bits.
PSFMODEL0x000000011Source fitted with a psf model (linear or non-linear).
EXTMODEL0x000000022Source fitted with an extended-source model.
FITTED0x000000044Source fitted with non-linear model (PSF or EXT; good or bad).
FAIL0x000000088Fit (non-linear) failed (non-converge\; off-edge\; run to zero).
POOR0x0000001016Fit succeeds\; but low-S/N\; high-Chisq\; or large (for PSF -- drop?).
PAIR0x0000002032Source fitted with a double PSF.
PSFSTAR0x0000004064Source used to define PSF model.
SATSTAR0x00000080128Source model peak is above saturation.
BLEND0x00000100256Source is a blend with other sources.
EXTERNAL0x00000200512Source based on supplied input position.
BADPSF0x000004001024Failed to get good estimate of object's PSF.
DEFECT0x000008002048Source is thought to be a defect.
SATURATED0x000010004096Source is thought to be saturated pixels (bleed trail).
CR_LIMIT0x000020008192Source has crNsigma above limit.
EXT_LIMIT0x0000400016384Source has extNsigma above limit.
MOMENTS_FAILURE0x0000800032768Could not measure the moments.
SKY_FAILURE0x0001000065536Could not measure the local sky.
SKYVAR_FAILURE0x00020000131072Could not measure the local sky variance.
BELOW_MOMENTS_SN0x00040000262144Moments not measured due to low S/N.
UNDEF_10x00080000524288Unused bit value.
BIG_RADIUS0x001000001048576Poor moments for small radius\; try large radius.
AP_MAGS0x002000002097152Source has an aperture magnitude.
BLEND_FIT0x004000004194304Source was fitted as a blend.
EXTENDED_FIT0x008000008388608Full extended fit was used.
EXTENDED_STATS0x0100000016777216Extended aperture stats calculated.
LINEAR_FIT0x0200000033554432Source fitted with the linear fit.
NONLINEAR_FIT0x0400000067108864Source fitted with the non-linear fit.
RADIAL_FLUX0x08000000134217728Radial flux measurements calculated.
SIZE_SKIPPED0x10000000268435456Size could not be determined.
PEAK_ON_SPIKE0x20000000536870912Peak lands on diffraction spike.
PEAK_ON_GHOST0x400000001073741824Peak lands on ghost or glint.
PEAK_OFF_CHIP0x800000002147483648Peak lands off edge of chip.

DetectionFlags values, e.g. column infoFlag2 in table Detection, and XinfoFlag2 (X one of g,r,i,z,y) in StackObjectThin

These values are also listed in system table DetectionFlags2.

DetectionFlags values, e.g. column infoFlag3 in table Detection, and XinfoFlag3 (X one of g,r,i,z,y) in StackObjectThin

These values are also listed in system table DetectionFlags3.

 

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