LSST Applications
21.0.0-147-g0e635eb1+1acddb5be5,22.0.0+052faf71bd,22.0.0+1ea9a8b2b2,22.0.0+6312710a6c,22.0.0+729191ecac,22.0.0+7589c3a021,22.0.0+9f079a9461,22.0.1-1-g7d6de66+b8044ec9de,22.0.1-1-g87000a6+536b1ee016,22.0.1-1-g8e32f31+6312710a6c,22.0.1-10-gd060f87+016f7cdc03,22.0.1-12-g9c3108e+df145f6f68,22.0.1-16-g314fa6d+c825727ab8,22.0.1-19-g93a5c75+d23f2fb6d8,22.0.1-19-gb93eaa13+aab3ef7709,22.0.1-2-g8ef0a89+b8044ec9de,22.0.1-2-g92698f7+9f079a9461,22.0.1-2-ga9b0f51+052faf71bd,22.0.1-2-gac51dbf+052faf71bd,22.0.1-2-gb66926d+6312710a6c,22.0.1-2-gcb770ba+09e3807989,22.0.1-20-g32debb5+b8044ec9de,22.0.1-23-gc2439a9a+fb0756638e,22.0.1-3-g496fd5d+09117f784f,22.0.1-3-g59f966b+1e6ba2c031,22.0.1-3-g849a1b8+f8b568069f,22.0.1-3-gaaec9c0+c5c846a8b1,22.0.1-32-g5ddfab5d3+60ce4897b0,22.0.1-4-g037fbe1+64e601228d,22.0.1-4-g8623105+b8044ec9de,22.0.1-5-g096abc9+d18c45d440,22.0.1-5-g15c806e+57f5c03693,22.0.1-7-gba73697+57f5c03693,master-g6e05de7fdc+c1283a92b8,master-g72cdda8301+729191ecac,w.2021.39
LSST Data Management Base Package
|
Classes | |
class | _FilterCatalog |
class | ReferenceObjectLoaderBase |
class | ReferenceObjectLoader |
class | LoadReferenceObjectsConfig |
class | LoadReferenceObjectsTask |
Functions | |
def | isOldFluxField (name, units) |
def | hasNanojanskyFluxUnits (schema) |
def | getFormatVersionFromRefCat (refCat) |
def | convertToNanojansky (catalog, log, doConvert=True) |
def | getRefFluxField (schema, filterName=None) |
def | getRefFluxKeys (schema, filterName=None) |
def | joinMatchListWithCatalogImpl (refObjLoader, matchCat, sourceCat) |
def | applyProperMotionsImpl (log, catalog, epoch) |
def lsst.meas.algorithms.loadReferenceObjects.applyProperMotionsImpl | ( | log, | |
catalog, | |||
epoch | |||
) |
Apply proper motion correction to a reference catalog. Adjust position and position error in the ``catalog`` for proper motion to the specified ``epoch``, modifying the catalog in place. Parameters ---------- log : `lsst.log.Log` Log object to write to. catalog : `lsst.afw.table.SimpleCatalog` Catalog of positions, containing: - Coordinates, retrieved by the table's coordinate key. - ``coord_raErr`` : Error in Right Ascension (rad). - ``coord_decErr`` : Error in Declination (rad). - ``pm_ra`` : Proper motion in Right Ascension (rad/yr, East positive) - ``pm_raErr`` : Error in ``pm_ra`` (rad/yr), optional. - ``pm_dec`` : Proper motion in Declination (rad/yr, North positive) - ``pm_decErr`` : Error in ``pm_dec`` (rad/yr), optional. - ``epoch`` : Mean epoch of object (an astropy.time.Time) epoch : `astropy.time.Time` Epoch to which to correct proper motion.
Definition at line 1454 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.convertToNanojansky | ( | catalog, | |
log, | |||
doConvert = True |
|||
) |
Convert fluxes in a catalog from jansky to nanojansky. Parameters ---------- catalog : `lsst.afw.table.SimpleCatalog` The catalog to convert. log : `lsst.log.Log` Log to send messages to. doConvert : `bool`, optional Return a converted catalog, or just identify the fields that need to be converted? This supports the "write=False" mode of `bin/convert_to_nJy.py`. Returns ------- catalog : `lsst.afw.table.SimpleCatalog` or None The converted catalog, or None if ``doConvert`` is False. Notes ----- Support for old units in reference catalogs will be removed after the release of late calendar year 2019. Use `meas_algorithms/bin/convert_to_nJy.py` to update your reference catalog.
Definition at line 86 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.getFormatVersionFromRefCat | ( | refCat | ) |
"Return the format version stored in a reference catalog header. Parameters ---------- refCat : `lsst.afw.table.SimpleCatalog` Reference catalog to inspect. Returns ------- version : `int` Format verison integer. Returns `0` if the catalog has no metadata or the metadata does not include a "REFCAT_FORMAT_VERSION" key.
Definition at line 63 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.getRefFluxField | ( | schema, | |
filterName = None |
|||
) |
Get the name of a flux field from a schema. return the alias of "anyFilterMapsToThis", if present else if filterName is specified: return "*filterName*_camFlux" if present else return "*filterName*_flux" if present (camera filter name matches reference filter name) else throw RuntimeError else: return "camFlux", if present, else throw RuntimeError Parameters ---------- schema : `lsst.afw.table.Schema` Reference catalog schema. filterName : `str`, optional Name of camera filter. If not specified, ``defaultFilter`` needs to be set in the refcat loader config. Returns ------- fluxFieldName : `str` Name of flux field. Raises ------ RuntimeError If an appropriate field is not found.
Definition at line 771 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.getRefFluxKeys | ( | schema, | |
filterName = None |
|||
) |
Return keys for flux and flux error. Parameters ---------- schema : `lsst.afw.table.Schema` Reference catalog schema. filterName : `str` Name of camera filter. Returns ------- keys : `tuple` of (`lsst.afw.table.Key`, `lsst.afw.table.Key`) Two keys: - flux key - flux error key, if present, else None Raises ------ RuntimeError If flux field not found.
Definition at line 820 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.hasNanojanskyFluxUnits | ( | schema | ) |
Return True if the units of all flux and fluxErr are correct (nJy).
Definition at line 54 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.isOldFluxField | ( | name, | |
units | |||
) |
Return True if this name/units combination corresponds to an "old-style" reference catalog flux field.
Definition at line 43 of file loadReferenceObjects.py.
def lsst.meas.algorithms.loadReferenceObjects.joinMatchListWithCatalogImpl | ( | refObjLoader, | |
matchCat, | |||
sourceCat | |||
) |
Relink an unpersisted match list to sources and reference objects. A match list is persisted and unpersisted as a catalog of IDs produced by afw.table.packMatches(), with match metadata (as returned by the astrometry tasks) in the catalog's metadata attribute. This method converts such a match catalog into a match list, with links to source records and reference object records. Parameters ---------- refObjLoader Reference object loader to use in getting reference objects matchCat : `lsst.afw.table.BaseCatalog` Unperisted packed match list. ``matchCat.table.getMetadata()`` must contain match metadata, as returned by the astrometry tasks. sourceCat : `lsst.afw.table.SourceCatalog` Source catalog. As a side effect, the catalog will be sorted by ID. Returns ------- matchList : `lsst.afw.table.ReferenceMatchVector` Match list.
Definition at line 1393 of file loadReferenceObjects.py.