Release 25.0.1 (2023-08-28)¶
This release is based on the
w_2022_48 weekly build with 21 tickets backported.
The notes below highlight significant technical changes to the Science Pipelines codebase in this release. For a complete list of changes made, see Tickets Addressed in Release 25.0.1.
The Characterization Metric Report (DMTR-302) describes the scientific performance of this release in terms of scientific performance metrics.
If you have questions or comments about this release, visit our Community forum for advice.
Major new features¶
The new package, analysis_tools, implements a framework for modular, scalable, and reproducible computation of metrics and plots to assess both image and pipeline quality.
A significantly modified fork of Dark Energy Survey’s astrometric calibration algorithm has been added to the Science Pipelines. gbdes will be used for global astrometric fitting in the data release pipeline from v26.0.0. See also RFC-853.
BPS Parsl plugin¶
A Parsl-based plugin ctrl_bps_parsl for the LSST Batch Production Service (BPS) execution framework as added. It is intended to support running LSST PipelineTask jobs on high-performance computing (HPC) clusters.
Hierarchical Progressive Surveys (HiPS) trees¶
GenerateHipsTask was added to the pipelines.
This Task generates Hierarchical Progressive Surveys (HiPS) trees from high-resolution, healpix-projected coadds. HiPS images produced by this Task are viewable in the Portal for Data Preview 0.2.
Significant interface changes¶
Refactored image difference tasks¶
ImageDifferenceTask, which performed both image subtraction and source detection, has been split into
DetectAndMeasureTask. The first performs image subtraction, and the latter detects and measures sources on the image differences.
lsst.meas.extensions.ScarletDeblendTask now outputs a single storage container that allows users to access both the scarlet models and flux re-distributed model while using an order of magnitude less storage space.
New packages added¶
analysis_tools assists in the creation of quality assurance (QA) plots and metrics from the outputs of a data reduction pipeline
ctrl_bps_parsl is the Parsl-based plugin for the LSST Batch Production Service (BPS) execution framework.
display_astrowidgets is the astrowidgets implementation for afwDisplay based on the Ginga image viewer
drp_tasks contains high-level Tasks specific to the data release production pipeline.
felis contains DBMS-agnostic schema descriptions
gbdes is a fork of the gbernstein/gbdes package, modified for use by the LSST Science Pipelines as a third-party dependency.
These Tasks or methods will be deprecated in the next major release.
Deprecate method getInstrument¶
obs.base.util.getInstrument will be replaced by
lsst.pipe.base.Instrument.from_string and will be removed after release of release v27.0.0.
Deprecate interfaces ParquetTable and MultilevelParquetTable¶
The Gen 2 I/O interfaces
pipe_tasks will be removed after the release of v26.0.0.
Deprecate factory construction with makeIdFactory¶
ID factory construction with
lsst.ip.diffim.detectAndMeasure.makeIdFactory should be replaced by using
idGenerator config field and will be removed after the release of v27.0.0.
Deprecate method get_bool_array¶
get_bool_array method in
lsst.afw.table.BaseColumnView and its derived subclasses should not be used as
Catalog.__getitem__ now provides better support accessing flag/bool columns and will be removed after the release of v27.0.0.
Pending deprecations in lsst.daf.butler¶
Butler.getDeferred should be replaced by
Butler.datasetExistsDirect will be replaced by
Butler.datasetExists will be replaced by
Butler.datastore property will be deprecated.
DimensionPacker class will be deprecated in v26.0.0 in favor of configurable dimension packers.
Before mentioned will be removed after the release of v27.0.0.
lsst.skymap.packers.SkyMapDimensionPacker the methods
getMaxIntForFilters will be deprecated in v26.0.0 and be removed after the release of v27.0.0.
Deprecated task configurations¶
lsst.pipe.tasks.skyCorrectionu that will be removed after the release of v26.0.0. (see [RFC-898] for further details):
lsst.pipe.tasks.coaddBase is no longer used and will be released after the release of v27.0.0.
lsst.cp,pipe.ptc.cpExtractPtcTask the following configurations have been moved to
cpSolvePtcTask and will be removed after the release of v26.0.0:
These packages/functions are deprecated and will not be available in the next major release.
Deprecated Gen 3 code in pipe_drivers¶
PipelineTask classes in
SkyCorrectionTask, are deprecated and the identical code in
pipe_tasks should be used instead.
Please update any Gen 3 pipeline definitions to use the new location.
pipe_drivers (along with
daf_persistence) will be removed following this release.
Deprecated configurations in PsfexStarSelectorTask¶
The following configurations are no longer used and will be removed after this release:
Deprecate PSF evaluation without position argument¶
PSF models are spatially-varying. Evaluation of these models with methods such as
psf.computeImage without a position argument will return the realization of the PSF at the average position.
A position argument will be required after v25.
The current behavior can be replicated by explicitly providing the average position like
For more information, refer to RFC-796.
Deprecated f-string log messages¶
f-string log messages are now deprecated to match Python logging convention.
For more information, refer to RFC-789.
Deprecated task configurations¶
disk_pa_colto specify disk half-light ellipse.
bulge_axis_ratio_col, and to specify disk half-light ellipse.