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Executive Summary

We invite members of the UK community to propose value added contributions to the commissioning of the Vera C. Rubin Observatory as part of LSST:UK’s in-kind package. This call for proposals follows acceptance of the commissioning element of our in-kind proposal, and initiates the detailed development and approval of the UK’s commissioning team and plans. Our in-kind “recipient group”, namely Rubin’s System Integration Test and Commissioning (SITCOM) team, have identified on-summit support of wavefront sensor sub-system commissioning as a high priority, in addition to a wider team that analyses commissioning data remotely in part-time roles while based at their home institute. All such roles are envisaged as lasting 1-2 years during the 2022 and 2023 calendar years. Our in-kind proposal included 3 staff years of new STFC funding for UK commissioning contributions, split roughly 50-50 between our summit and remote teams. Given the limited funding, and the exciting nature of this opportunity, we anticipate that most members of the UK commissioning team will be unfunded, volunteering a fraction of their research time. Whilst we envisage most of the proposals submitted in reponse to this call will come from groups that submitted an Expression of Interest in 2020, this call is open to all Uk colleagues regardless of previous expression of interest. This call includes background information on the process followed to date, examples of value-added contributions sought by SITCOM, and details of the rights and responsibilities of SITCOM team members, including individuals who join through this call. This call for proposals is coordinated with the recent Announcement of Opportunity for Community Engagement with Rubin Observatory Commissioning Effort in the US and Chile, however UK colleagues are only eligible to respond this UK-specific call. Proposals in response to this UK-specific call must be prepared using this template, and submitted to lusc_pm@mlist.is.ed.ac.uk before 5pm UTC September 30, 2021. Questions or concerns about this call for proposals may be directed to Graham Smith (gps@star.sr.bham.ac.uk) and Bob Mann (rgm@roe.ac.uk).

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This opportunity follows the Rubin Observatory's acceptance of the commissioning component of LSST:UK's In-kind proposal to Rubin Observatory, which incorporated input from the 21 UK groups that submitted Expressions of Interest (EoI) in response to the August 2020 call for interest. The proposal submission deadline will be followed by an internal UK review of proposals, with a remit that includes appropriate peer review of any funded effort requested in the proposals. This will be followed by preparation of a full UK proposal that integrates all accepted individual proposals, and submission of this full proposal to SITCOM leadership in late October 2021. The overall aim is for the UK contingent in the SITCOM team to be selected by the end of 2021 and to commence on-boarding and training in early 2022. The following table summarises this timeline:

September 30, 2021 at 5pm UTC

Deadline for proposal submission

October 2021

LSST:UK review of proposals and preparation of full UK proposal

Early-mid November 2021

Transmission of full UK proposal to SITCOM leadership

November / December 2021

Joint review of UK proposal by SITCOM and LSST:UK leadership

End of 2021

LSST:UK and SITCOM agree UK members of SITCOM team

Early 2022

LSST:UK team members join SITCOM and begin training

Late 2023 / early 2024

Commissioning ends and survey operations begin

2. Scope

Whilst we envisage that most of the proposals submitted in response to this call will be from groups that submitted an EoI, proposals from groups that did not submit an EoI are very welcome. We encourage discussion and collaboration between groups when developing proposals in response to this call, and include a summary of the EoIs submitted in 2020 in Appendix 1 so as to facilitate such discussion.

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This appendix lists colleagues who submitted an Expression of Interest in 2020 and who have given permission for their contact details and EoI titles to be shared.

Chris Collins (Liverpool JMU; c.a.collins@ljmu.ac.uk)

  • Recovery of the intra cluster light in galaxy clusters

Gavin Dalton (Oxford and RAL; gbd@astro.ox.ac.uk)

  • Hands-on camera-telescope commissioning including WFS calibrations

Hugh Dickinson (Open University; hugh.dickinson@open.ac.uk)

  • Integrating LSST commissioning data with the ESCAPE Science Analysis Platform (ESAP)

  • Applying Citizen Science and machine learning to Rubin’s commissioning and early survey data

  • Visual inspection of engineering data with Citizen Science

Isobel Hook (Lancaster; i.hook@lancaster.ac.uk)

  • Commissioning the transient alert stream process for LSST

Helen Jermak (Liverpool JMU; h.e.jermak@ljmu.ac.uk)

  • On-summit commissioning support, bringing experience of autonomous scheduling and commissioning to short timescales

Tanmoy Laskar (Bath; tanmoylaskar@gmail.com)

  • Deploying machine learning techniques to test commissioning data

Nicola Laporte (Cambridge; nl408@cam.ac.uk)

  • Testing and improving software for design of observations and data reduction, and on-summit support of commissioning observations

Jon Loveday (Sussex; j.loveday@sussex.ac.uk)

  • Data quality tests via the Limber scaling relation, building on APM and HSC experience

Matt Nicholl (Birmingham; mnicholl@star.sr.bham.ac.uk)

  • Testing machine learning algorithms for fast classification of LSST transients

James Mullaney (Sheffield; j.mullaney@sheffield.ac.uk)

  • Data quality checks on commissioning data including photometry, astrometry, and PSF characterization

Cyrielle Opitom (Edinburgh; copi@roe.ac.uk)

  • On-summit commissioning support and analysis of commissioning data

Paul Giles and Kathy Romer (Sussex; p.a.giles@sussex.ac.uk, romer@sussex.ac.uk)

  • Eyeballing of on-sky commissioning data building on tools and experience from DES, plus on-summit support

Stephen Serjeant (Open University; stephen.serjeant@open.ac.uk)

  • Deep learning CNNs for exotic strong lens finding

  • Cross-correlating LSST DR2 commissioning data with super-resolved Herschel survey data

Graham Smith (Birmingham; gps@star.sr.bham.ac.uk), Aprajita Verma (Oxford), Tom Collett (Portsmouth), plus SLSC and DESC-SLWG colleagues

  • Strong lenses as challenging scientific use cases for testing Rubin active optics and delivered seeing in commissioning

Will Sutherland (Queen Mary University of London; w.j.sutherland@qmul.ac.uk)

  • Commissioning of wavefront sensor subsystems, bringing similar experience from VISTA project scientist role including hands-on commissioning (2000-2009)

Tom Wilson and Tim Naylor (Exeter; t.j.wilson@exeter.ac.uk)

  • Assessing the accuracy of LSST astrometry

Appendix 2: Key extracts from the commissioning component of LSST:UK in-kind proposal

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