LSST Applications
21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
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` or `logging.getLogger` 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 1455 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` or `logging.Logger` 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 87 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 64 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 772 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 821 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 55 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 44 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 1394 of file loadReferenceObjects.py.