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titleRelease Frozen

The upcoming v12.0 release of the stack has been frozen. Please do not add anything here. Add new notes to the F16 release notes.

 

 

These draft notes cover the major updates made by Data Release Production to the LSST stack since release 11.0 (Summer 2015). Please record significant updates here so that they can ultimately be incorporated into the notes accompanying the Winter 2016 release.

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Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-5284

Add Hirata-Seljak-Mandelbaum shape measurement algorithms

The meas_extensions_shapeHSM package has been added to the distribution. This provides a series of measurement algorithms based on the work by Hirata and Seljak (2003) and Mandelbaum (2005): please cite those works if publishing results based on this code. These algorithms are disabled by default; they can be enabled by requesting ext_shapeHSM_HsmShapeBj, ext_shapeHSM_HsmShapeLinear, ext_shapeHSM_HsmShapeKsb, ext_shapeHSM_HsmShapeRegauss, ext_shapeHSM_HsmSourceMoments and/or ext_shapeHSM_HsmPsfMoments in the measurement configuration.

Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-2141
Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-3384
Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-4780

Add option to temporarily remove an interpolated background prior to detection

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Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-3775

Port bugfixes in meas_extensions_shapeHSM from HSC to LSST

Various bug fixes to the shapeHSM measurement algorithm were ported and include:

  • Ensuring masks have same xy0 as images
  • Fixing scaling coefficient in ellipticity error when using distortion
  • Provide appropriate mask for variance image when measuring median variance around object
  • Change from standard deviation to variance in the sky value when calling GalSim hsm code, as required by GalSim
  • Fixes to unit tests to comply with above changes, and the port from the HSC framework to the LSST framework

Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-3384

Fix variance in coadded images

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Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-4998

Correct coding errors in meas_extensions_shapeHSM

Some minor errors when this code was converted to the meas_base framework left it unusable. These have been corrected.

Jira
serverJIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId9da94fb6-5771-303d-a785-1b6c5ab0f2d2
keyDM-4780

Fix a silent failure to apply config overrides

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