LSST Applications g0265f82a02+c6dfa2ddaf,g1162b98a3f+b2075782a9,g2079a07aa2+1b2e822518,g2bbee38e9b+c6dfa2ddaf,g337abbeb29+c6dfa2ddaf,g3ddfee87b4+a60788ef87,g50ff169b8f+2eb0e556e8,g52b1c1532d+90ebb246c7,g555ede804d+a60788ef87,g591dd9f2cf+ba8caea58f,g5ec818987f+864ee9cddb,g858d7b2824+9ee1ab4172,g876c692160+a40945ebb7,g8a8a8dda67+90ebb246c7,g8cdfe0ae6a+4fd9e222a8,g99cad8db69+5e309b7bc6,g9ddcbc5298+a1346535a5,ga1e77700b3+df8f93165b,ga8c6da7877+aa12a14d27,gae46bcf261+c6dfa2ddaf,gb0e22166c9+8634eb87fb,gb3f2274832+d0da15e3be,gba4ed39666+1ac82b564f,gbb8dafda3b+5dfd9c994b,gbeb006f7da+97157f9740,gc28159a63d+c6dfa2ddaf,gc86a011abf+9ee1ab4172,gcf0d15dbbd+a60788ef87,gdaeeff99f8+1cafcb7cd4,gdc0c513512+9ee1ab4172,ge79ae78c31+c6dfa2ddaf,geb67518f79+ba1859f325,geb961e4c1e+f9439d1e6f,gee10cc3b42+90ebb246c7,gf1cff7945b+9ee1ab4172,w.2024.12
LSST Data Management Base Package
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Public Member Functions | |
factory (cls, stamp_im, metadata, idx, archive_element=None, minValidAnnulusFraction=0.0) | |
measureAndNormalize (self, SpanSet annulus, StatisticsControl statsControl=StatisticsControl(), Property statsFlag=stringToStatisticsProperty("MEAN"), Collection[str] badMaskPlanes=("BAD", "SAT", "NO_DATA")) | |
Public Attributes | |
stamp_im | |
validAnnulusFraction | |
minValidAnnulusFraction | |
annularFlux | |
Static Public Attributes | |
MaskedImageF | stamp_im |
float | gaiaGMag |
int | gaiaId |
Point2I | position |
Persistable | archive_element = None |
float | annularFlux = None |
float | minValidAnnulusFraction = 0.0 |
float | validAnnulusFraction = None |
int | optimalInnerRadius = None |
int | optimalOuterRadius = None |
Single stamp centered on a bright star, normalized by its annularFlux. Parameters ---------- stamp_im : `~lsst.afw.image.MaskedImage` Pixel data for this postage stamp gaiaGMag : `float` Gaia G magnitude for the object in this stamp gaiaId : `int` Gaia object identifier position : `~lsst.geom.Point2I` Origin of the stamps in its origin exposure (pixels) archive_element : `~lsst.afw.table.io.Persistable` or None, optional Archive element (e.g. Transform or WCS) associated with this stamp. annularFlux : `float` or None, optional Flux in an annulus around the object
Definition at line 45 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.factory | ( | cls, | |
stamp_im, | |||
metadata, | |||
idx, | |||
archive_element = None, | |||
minValidAnnulusFraction = 0.0 ) |
This method is needed to service the FITS reader. We need a standard interface to construct objects like this. Parameters needed to construct this object are passed in via a metadata dictionary and then passed to the constructor of this class. This particular factory method requires keys: G_MAGS, GAIA_IDS, and ANNULAR_FLUXES. They should each point to lists of values. Parameters ---------- stamp_im : `~lsst.afw.image.MaskedImage` Pixel data to pass to the constructor metadata : `dict` Dictionary containing the information needed by the constructor. idx : `int` Index into the lists in ``metadata`` archive_element : `~lsst.afw.table.io.Persistable` or None, optional Archive element (e.g. Transform or WCS) associated with this stamp. minValidAnnulusFraction : `float`, optional The fraction of valid pixels within the normalization annulus of a star. Returns ------- brightstarstamp : `BrightStarStamp` An instance of this class
Reimplemented from lsst.meas.algorithms.stamps.AbstractStamp.
Definition at line 76 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.measureAndNormalize | ( | self, | |
SpanSet | annulus, | ||
StatisticsControl | statsControl = StatisticsControl(), | ||
Property | statsFlag = stringToStatisticsProperty("MEAN"), | ||
Collection[str] | badMaskPlanes = ("BAD", "SAT", "NO_DATA") ) |
Compute "annularFlux", the integrated flux within an annulus around an object's center, and normalize it. Since the center of bright stars are saturated and/or heavily affected by ghosts, we measure their flux in an annulus with a large enough inner radius to avoid the most severe ghosts and contain enough non-saturated pixels. Parameters ---------- annulus : `~lsst.afw.geom.spanSet.SpanSet` SpanSet containing the annulus to use for normalization. statsControl : `~lsst.afw.math.statistics.StatisticsControl`, optional StatisticsControl to be used when computing flux over all pixels within the annulus. statsFlag : `~lsst.afw.math.statistics.Property`, optional statsFlag to be passed on to ``afwMath.makeStatistics`` to compute annularFlux. Defaults to a simple MEAN. badMaskPlanes : `collections.abc.Collection` [`str`] Collection of mask planes to ignore when computing annularFlux.
Definition at line 121 of file brightStarStamps.py.
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static |
Definition at line 69 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.annularFlux |
Definition at line 171 of file brightStarStamps.py.
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Definition at line 68 of file brightStarStamps.py.
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Definition at line 65 of file brightStarStamps.py.
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Definition at line 66 of file brightStarStamps.py.
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Definition at line 70 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.minValidAnnulusFraction |
Definition at line 169 of file brightStarStamps.py.
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static |
Definition at line 72 of file brightStarStamps.py.
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static |
Definition at line 73 of file brightStarStamps.py.
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Definition at line 67 of file brightStarStamps.py.
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Definition at line 64 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.stamp_im |
Definition at line 155 of file brightStarStamps.py.
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static |
Definition at line 71 of file brightStarStamps.py.
lsst.meas.algorithms.brightStarStamps.BrightStarStamp.validAnnulusFraction |
Definition at line 163 of file brightStarStamps.py.