Weak gravitational lensing is a key science goal for LSST. The shear plans for Rubin are getting slowly more concrete and involves a lot of stakeholder conversations between the community (the Dark Energy Science Collaboration in particular) who develop the algorithms and the Project (Algorithms & Pipelines/Data Management in particular) who will implement and produce the data products. The state-of-the-art shear measurement algorithms like metadetection (Sheldon et. al, 2020) require multiple detection catalogs to produce unbiased estimates of shear and thus require special processing steps and some deviations from the rest of the science pipelines. This session is to review and agree upon current plans, identify pain points and get ready for commissioning.

Agenda:

• Introduction
• What is metadetection? (Matt Becker, for DESC)
• Cell-based coadds
• Open discussion

Slides:

https://docs.google.com/presentation/d/1GGOItKnlw1MtfG1IL7wLI2RzSKuI5nIk...