Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Large Synoptic Survey Telescope Victor Krabbendam LSST Project Manager Document-13865 The LSST Project continues to progress steadily in anticipation of a July 2014 formal construction start • LSST is a multi-agency project – – – – – NSF / DOE coordinated – MOU established National Science Board: NSF Director can move LSST forward DOE has assigned SLAC National Accelerator Center to build the Camera LSST is now an independent AURA Center for construction LSST Center and NOAO Center have MOU for specific cooperation • Project is organized and preparing for July 2014 construction – New C.A for Design and Development FY13- FY15 – Budget set: Requesting $466M NSF, $160M DOE, $36M Private – Schedule duration is 7 years 3 months from NSF construction start LSST was ASTO 2010 highest ranked new ground based facility – We are preparing for a 2014 Start Document-13865 The need for a new survey telescope has been recognized for many years • 1996-2000 “Dark Matter Telescope” Emphasized mapping dark matter in the universe • 2000 - “LSST” Emphasizes a broad range of science from the same multi-wavelength survey data, including unique time domain exploration • 2003 - LSST Corporation • 2011 – AURA LSST Center Document-13865 The LSST Science Book describes the investigations possible from a single survey − − − − − Strong end user case 245 contributors 11 science collaborations 598 pages Living document (on lsst.org) − arXiv/0912.0201 http://www.lsst.org/lsst/scibook Document-13865 The LSST survey will address today’s compelling questions in astro-physics • • • • Probing dark matter and dark energy Mapping the Milky Way Finding Near earth asteroids and other transients A single unprecedented survey: – – – – – 20 billion objects cataloged 4 billion galaxies with redshifts 6 filters covering 320 – 1050 nm Time domain information x1000 (106 supernovas) High precision, high uniformity, calibrated data Finding Near Earth Asteroids Document-13865 LSST receives strong Astro2010 decadal survey endorsement • LSST ranked as the highest priority large ground-based facility for the next decade. – Compelling Science case – Addresses many science goals (massively parallel astro-physics) – Technical maturity – Risk and appraised costs are ready for construction process – LSST is most “ready-to-go” Document-13865 Large Synoptic Survey Telescope (LSST) To build an observing facility, conduct 10-year survey, archive and serve images and developed data products • • • • • Wide Fast Deep Optical Survey 8.4 M Primary Aperture 3.5 Degree Field Of View 3.2 Billion Pixel Camera ~40 Second Cadence – Two 15 second exposures – Full sky coverage every few nights • Data Served and Archived – Alerts of new events – Catalogs of objects • Education and Public Outreach is included Document-13865 2012 What makes the LSST a unique Telescope? Primary Mirror Diameter Field of View 0.2 degrees Gemini South Telescope 8m 3.5 degrees (Full moon is 0.5 degrees) LSST 8.4 m Document-13865 Wide Fast Deep coverage of the available sky Each sky patch will be visited >800 times A survey of 20 billion objects in space and time Document-13865 LSST probes 100x fainter & enables the exploration of the time domain ca. 1950 POSS (Photographic) ca. 2000 SDSS (Digital) Document-13865 ca. 2021 LSST (Digital + Time Domain) LSST Designed to be a Community Resource Open data • No proprietary period for U.S. and Chilean astronomers • Funding model designed to serve these two communities Open Source Software New Model for Astronomy • Excites significant scientific enthusiasm • Agency Support • Public excitement Huge opportunity for education and multi discipline interaction • STEM education and public interaction • Database technology and Data intensive science Document-13865 LSST has attracted a great deal of interest • • • • • LSST Corporation has 36 institutional partners Operations strategy now includes 66 international institutions Over 400 scientists in 12 different Science collaborations ~10 years of DOE and NSF design support ~$40 in Private donations Document-13865 LSST is investing in significant survey and image simulation Observing an LSST simulation Producing a simulated image Pointing, Filter, Airmass, Time and Atmosphere from Op Sim 1010 photons per CCD Separate amplifiers Custom instance of field of view Document-13865 Site selection was an early trade that supports design and construction readiness Central Chile Location Map La Serena airport La Serena port Coquimbo Cerro Pachón chosen in 2006 after 2 year global evaluation by international committee. LSST Base Facility Puclaro dam & tunnel AURA property (Totoral) Vicuña CTIO Gemini & SOAR N 0 10 Document-13865 20 km LSST SITE Site choice supports design maturity, cost basis, risk and construction preparation • Environmental and Use permits in place • Chilean “10%” agreement completed SOAR Gemini Document-13865 LSST rendering ----2647 m LSST Corporation invested non-federal funds for early site leveling in 2011 • Stage 1 of summit leveling – ~4,000 kg of explosives – 12,500 m3 removed on main site First production blast: March 8th 2011, 60 kg of explosive dislodges ~320 m3 of rock Document-13865 LSST Corporation invested non-federal funds for early site leveling in 2011 Document-13865 Optical design was another early trade study addressed as a complete system Document-13865 The LSST optical system is 3 mirrors and 3 lenses to form 3.5° field of view Secondary Mirror Camera Lenses Primary and Tertiary Mirrors Document-13865 Mirror designs are advanced - Private funding enabled early start of both reflective optics • Secondary substrate fabricated by Corning in 2009. • Currently in storage waiting for construction. • Primary-Tertiary cast in 2008. • Fabrication underway at the Steward Observatory Mirror Lab - completion in Summer 2013. Document-13865 LSST is ready for secondary mirror optical fabrication vendor selection process • Pre-solicitation announcement in FedBizOpps - 26 June 2012 • Release Request for Proposal: August 2012 – Full bid for optical fabrication – Time and materials hardware integration/test – Optional effort to build mirror support hardware • Phase A: Initial final design work and vendor specific risk reduction • Phase B: Fabrication phase authorized only after MREFC start • Early identification of optical fabrication contractor allows FDR preparation and cost basis Document-13865 M2 Proposal Evaluation Plans • • • • • • Project Evaluation = 4 weeks. AURA Approval = 3 weeks. NSF Approval = 4 weeks (Longer for Holidays in this schedule). Final Negotiation and contract placement = 3 weeks. 3 1/2 months to let a contract assumes no significant issues. This M2 procurement is a pathfinder to validate our approach. Document-13865 Camera system design is well advanced • • • • • 3.2 Gigapixel science array – 63 cm diameter Wavefront and guide sensors 2 second readout 5 filters in camera Electronics Utility Trunk—houses support electronics and utilities Cryostat—contains focal plane & its electronics L3 Lens 1.65 m (5’-5”) Filter L1 Lens Camera ¾ Section Document-13865 L2 Lens Focal plane LSST focal plane is a modular design of 21 rafts totaling 189 science sensors 3X3 CCD “RAFT” 4K x 4K CCD with 10µm pixels is divided into 16 1Mpix segments with individual readout Each raft has electronics and thermal elements to be autonomous 144 Mpixel array Document-13865 Summit facility (fixed building) 90% design completed – 100% before end of year 30 m diameter dome 1.2 m diameter atmospheric telescope Control room and heat producing equipment (lower level) 1,380 m2 service and maintenance facility Stray light and Wind Screen Wind light screen prototype designed for mechanism and life testing Document-13865 A Peta-scale data management system has been designed for the LSST • LSST Data Management System must deal with an unprecedented data volume. – – – – – one 6.4-gigabyte image every 17 seconds 15 terabytes of raw scientific image data / night 60-petabyte final image data archive 20-petabyte final database catalog 2 million real time events per night every night for 10 years • Provide a highly reliable open source system to provide: – Real time alerts, – catalog data products, – image data. • Provides the infrastructure to transport, process, and serve the data. Document-13865 Cyber infrastructure is defined and capacity has been identified to handle data volume Archive /Data Center Data Release Production at IN2P3 MOU in place – Technical details pending • Summit-Base network will be installed by the project. • Working with NSF funded network consortiums on capacity. • International protected network identified and quoted (upgraded.) Document-13865 LSST data processing pipelines are designed, and prototyped and tested in data challenges • Data Challenges have continued every 6 months. • Unique database design to address multiple trillion row data sets. Document-13865 EPO is developing products and tools to meet the public user where they are • Collaborating with DM on User Interface Design: Sharing UML Domain Model. • Building Sustainable Partnerships: Outreach Advisory Board, Potential Collaborators. • Prototyping Modules: Citizen Science, iPhone app, WWT Tour, Multiuser Touchtable interfaces. • Documenting: Baseline Design, Subsystem Requirements, Inclusion in SysML model. Document-13865 Management team for construction period has continuity with current staff Chief Scientist Tony Tyson Director / LSSTC President Sidney Wolff Deputy Director Steve Kahn Project Scientist Zeljko Ivezic Project Manager Victor Krabbendam Systems Engineer Chuck Claver Systems Scientist Open Business Manager Daniel Calabrese Safety Manager Chuck Gessner Calibration Scientist Tim Axelrod Image Simulation Scientist Andy Connolly Op. Simulation Scientist Abi Saha Science Council Data Management Project Manager Jeff Kantor Project Scientist Mario Juric Camera Project Manager Nadine Kurita Project Scientist Andy Rasmussen Document-13865 Telescope and Site Project Manager Bill Gressler Project Scientist Open Education and Public Outreach Manager Suzanne Jacoby Project Scientist Tim Axelrod 7 year 3 month schedule developed to align with camera delivery to summit in July 2019 Document-13865 LSST total federal construction budget sets not to exceed levels Contingency: $133M 21% PMO: $41M 7% DM: $121M 19% Commissioning: $32M 5% EPO: $12M 2% Camera: $113M 18% T&S: $174M 28% NSF Request $ 465.9 M Base Budget $ 492.7 M DOE Not to exceed $ 160.0 M Contingency $ 133.2 M “Private” $ “Private” Funding or $ 39.0* M $ 664.9 M Document-13865 39.0* M $ 664.9 M * Private funded construction not included in pie chart Construction budget profile matches each Agency’s funding plans and outlook NSF and DOE proposed annual funding profile for LSST FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 Total Funding Profile (Millions - USD) DOE 1.9 5.5 10 NSF CON NSF D&D Total 16 35 38 38 10 5.6 25.7 91.6 89.2 55.3 55.6 48.0 4.3 4.3 8.9 7.6 6.2 9.8 18.9 49.3 160 52.3 48.3 465.9 25.1 126.6 127.2 93.3 65.6 53.6 52.3 48.3 651.0 $100 $90 $80 Annual Funding (M-USD) • DOE yearly budget profile is included in department of Science budget • NSF MREFC funding fits within projections NSF D&D NSF CON (MREFC) $70 DOE $60 $50 $40 $30 $20 $10 $0 Document-13865 Fiscal Year LSST Project objective is “Preparing for Construction” Highest Priority is Preparing for next Agency Reviews – CD3a and FDR late in 2013 – Update/upgrade Project Management Control System Prolonged D&D to “Time is money” construction – Maintain excellent scientific ties – Program is now constrained - Track progress toward plan Staffing Additions – Director, Systems Engineer, PMCS, Office Administrator Business System Updates – $10M/yr to $100M/yr organization – “Routine”, “Robust”, and some case “enhance” Continue Technical Progress and Risk reduction Document-13865 Future home of LSST on Cerro Pachón LSST Site Calibration Hill Image credit: David Walker Document-13865 Document-13865 LSST Project and Corporation have developed in preparation for MREFC Construction • LSSTC is a 501(c) 3 founded in 2003 to build and operate the LSST - The University of Arizona - University of Washington - National Optical Astronomy Observatory - Research Corporation for Science Advancement - Adler Planetarium - Brookhaven National Laboratory (BNL) - California Institute of Technology - Carnegie Mellon University - Chile - Cornell University - Drexel University - Fermi National Accelerator Laboratory - George Mason University - Google, Inc. - Harvard-Smithsonian Center for Astrophysics - Institut de Physique Nucléaire et de Physique des Particules (IN2P3) - Johns Hopkins University - Kavli Institute for Particle Astrophysics and Cosmology - Stanford University - Las Cumbres Observatory Global Telescope Network, Inc. - Lawrence Livermore National Laboratory (LLNL) - Los Alamos National Laboratory (LANL) - National Radio Astronomy Observatory (NRAO - Princeton University - Purdue University - Rutgers University - SLAC National Accelerator Laboratory - Space Telescope Science Institute - Texas A & M University - The Pennsylvania State University - University of California at Davis - University of California at Irvine - University of Illinois at UrbanaChampaign - University of Michigan - University of Pennsylvania - University of Pittsburgh - Vanderbilt University • In October 2011 LSST construction project became and Independent AURA Center Document-13865 Several key and defining requirements flowdown to the observing system • High throughput optical system for image depth. – 8.4 meter primary aperture and 1.6 meter diameter camera lens – 3.5 degree field of view, 6 filters, fast f/1.2 beam • Sky coverage with quick and agile telescope. – 15 second exposure – 2 second readout – 15 second exposure – “5 sec slew & settle” between visits • Tight control of systematic error and noise. – Image quality and PSF shape control – Well baffled camera, telescope and facility • High efficiency and duty cycle. – Repeating all night, each night for 10 years – Maintenance support to limit downtime • High Capacity data management system – 2.5 million visits – 5 million images – 15Tb /night – 100Pb after 10 years Document-13865