LSST Project Status Kirk Gilmore LSST Camera Scientist October 1, 2008 - PowerPoint PPT Presentation

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LSST Project Status Kirk Gilmore LSST Camera Scientist October 1, 2008

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Title: LSST Project Status Kirk Gilmore LSST Camera Scientist October 1, 2008


1
LSST Project Status Kirk Gilmore LSST Camera
Scientist October 1, 2008
2
Project activities since the NSF CoDR
  • Activity focused on preparation for PDR and CD-1
  • Full review of project baseline, schedule, and
    cost estimates
  • Business preparation for LSSTC to receive funds
    directly
  • Primary/tertiary mirror cast in March, 2008 with
    private funds
  • Secondary mirror blank acquisition from Corning
  • LSSTC membership has grown to 24 members
  • Completed favorable agreement for site in Chile
  • Sensor prototype contracts with 3M in private
    funding
  • First significant international participation by
    IN2P3
  • Third LSST All Hands Meeting at NCSA with
    significant
  • scientific and technical progress reported

3
LSST mirror casting high fire celebration was
held March 29 at the UofA
4
Primary mirror casting will reach room
temperature in about 30 days
112 Day casting cycle
5
Preliminary design of the dome has been a focus
this period working closely with EIE (VLT
vendor)
Revised vent openings
Wind screen is tighter at corners and more
efficient
Structural support up front and new door in back
6
3-D view of El Peñón summit (at top)
calibration hill (in the right foreground)
With platforms prepared
7
One of the best accomplishments on Site since
CoDR is courtesy of Google Earth Now in Hi Res!
8
Effort on site has focused on civil engineering
and characterization of conditions
  • Civil Engineering contract in place with ARCADIS
    Geotécnica to design rough excavation process
  • Engineers on site May 8th to kick-off effort

9
Two of the study contract CCD devices
Both 100mm thick, high resistivity bulk
silicon,fully depleted
E2V
STA/ITL
10
Imaging data from study contract devices
e2V
STA/ITL
2K x 512, 13.5mm pixels, single output mode
4K x 4K, 10mm pixels, 16 outputs
11
Summary of study phase
Science driver Technology Advance Criterion Vendor 1 Vendor 2
Broadband, high QE Thick silicon, fully depleted QE(1000nm) gt 30 þ þ
  Transparent back contact QE(400nm) gt 40 ý þ
Seeing-limited image quality Low charge diffusion lt 3.2mm rms ? ?
  Small pixel size 10mm (0.2") ? þ
  Low read noise lt 5 e- rms ? ?
  Low dark current lt 2 e-/pix/s þ þ
  Low persistence lt 10-4 þ ?
  High full well gt 90,000 e- þ þ
  Flat silicon surface lt 5mm p-v þ ?
  TTP-controlled package lt 6.5mm over raft ? ?
High throughput Multiport output (4K)2, 16 output ? þ
  High fill factor die pkg gt 93 ? ?
  • ? meets LSST spec
  • ? does not meet spec
  • not addressed
  • ? not yet measured

12
Calypso at Kitt Peak is available to
validate LSST calibration for photometric accuracy
13

LSST is driving the new Mike Stonebreaker startup
Scientifica for XLDB
  • Big science unhappy with commercial RDBMS
    Systems
  • Astronomy, High Energy Physics, Fusion, Bio,
    BioMed, Chemistry, Remote sensing, etc.
  • Scientists forced to roll their own database
    systems to suit their specific needs for new
    projects OR limit scale of their science to
    limitations of commercial RDBM
  • Realization that Roll your own DB is long term
    suicide many Terabytes moving to Petabytes
  • Shouldnt limit Science based on capabilities of
    existing commercial DB systems which were
    designed 25 years ago
  • Recognition that Opensource is framework to
    aggregate requirements and resources to build DB
    system for Big Science for long term

14
Core Partners Computer Science/DBMS
  • Mike Stonebraker (MIT)
  • Dave Dewitt (Wisconsin -gt Microsoft)
  • Jignesh Patel (Wisconsin)
  • Dave Maier (Portland State)
  • Stan Zdonik (Brown)
  • Sam Madden (MIT)
  • Ugur Cetintemel (Brown)

15
Partners -- Other
  • Talking to
  • E-Bay
  • Amazon
  • Yahoo
  • Google
  • Microsoft

16
A few enabling characteristics of Scientifica
  • Open Source
  • MatLab-like syntax
  • User extendable operations
  • Provenance embedded
  • Scalable to Petabytes
  • Embedded Computations
  • Data are tagged with uncertainty parameters
  • Cloud computing with fault tolerance

17
Community Development NewCo
Beta Ships
Alpha System
Add Partners?
Design Specification Finalize Founding
Partners Formalize Company Begin Recruiting Begin
Coding
Q3
Q4
Q2
Q1
Q3
Q4
2008
2009
18
The current LSST timeline
FY-09
FY-10
FY-11
FY-12
FY-13
FY-14
FY-15
FY-16
FY-17
FY-07
FY-08
NSF DD Funding
MREFC Proposal Submission
NSF PDR
NSB
NSF CDR
NSF MREFC Funding
NSF Privately Supported Construction (8.5 years)
Commissioning
Operations
DOE Operating Funds
DOE MIE Funding
Privately Supported camera RD
DOE Privately Supported Fabrication (5 years)
DOE RD Funding
19
LSST Science, Data Policy, Collaborations Tony
Tyson LSST Director UC Davis
  • NSF
  • June 11, 2008

20
deep wide fast
21
Relative Survey Power
15 sec exposures
2000 exposures per field 20,000 square degrees
22
DSS digitized photographic plates
One quarter the diameter of the moon
23
Sloan Digital Sky Survey
24
Deep Lens Survey
25
LSST imaging operations simulations
Massively parallel science from one database
Sheared HDF raytraced perturbation
atmosphere wind optics pixel
LSST Operations, including real weather data
coverage depth
Performance verification using Subaru imaging
26
Comparing HST with Subaru
27
Comparing HST with Subaru
28
LSST survey of 20,000 sq deg
  • 3 billion galaxies with redshifts
  • Time domain
  • 1 million supernovae
  • 1 million galaxy lenses
  • 5 million asteroids
  • new phenomena

29
LSST Science Charts New Territory
Probing Dark Matter And Dark Energy
Mapping the Milky Way
opens the time window!
Finding Near Earth Asteroids
30
Key LSST Mission Dark Energy
Precision measurements of all four dark energy
signatures in a single data set. Separately
measure geometry and growth of dark matter
structure vs cosmic time.
  • Weak gravitational lensing correlations
  • (multiple lensing probes!)
  • Baryon acoustic oscillations
  • Counts of dark matter clusters
  • Supernovae to redshift 0.8
  • (complementary to JDEM)
  • Probe anisotropy! LSST unique

31
Dark Energy Error vs Etendue-Time
Separate DE Probes
Combined
32
Comparison of Stage-IV facilities for DE
33
Testing more general dark energy models
growth
distance
Zhan, Knox, Tyson 2008
34
Formation of our Galaxy and Group
SDSS
LSST
35
Moving objects Solar System near and far
Deep Lens Survey
36
Near Earth Objects
  • Inventory of solar system is incomplete
  • LSST would get orbits of nearly all NEOs
  • larger than 150m
  • Demanding project requires mapping the sky down
    to 24th magnitude every few days, individual
    exposures not to exceed 15 sec

37
PHA completeness
38
Optical flashes
?
difference
Deep Lens Survey
39
Unknown Unknowns
40
Massively Parallel Astrophysics
  • Dark matter/dark energy via weak lensing
  • Dark energy via baryon acoustic oscillations
  • Dark energy via supernovae
  • Galactic Structure encompassing local group
  • Dense astrometry over 20000 sq.deg rare moving
    objects
  • Gamma Ray Bursts and transients to high redshift
  • Gravitational micro-lensing
  • Strong galaxy cluster lensing physics of dark
    matter
  • Multi-image lensed SN time delays separate test
    of cosmology
  • Variable stars/galaxies black hole accretion
  • QSO time delays vs z independent test of dark
    energy
  • Optical bursters to 25 mag the unknown
  • 5-band 27 mag photometric survey unprecedented
    volume
  • Solar System Probes Earth-crossing asteroids,
    Comets, TNOs
  • Planetary transits

identified over 100 projects to be done with
this one database
LSST Overview Astro-ph/0805.2366
41
LSST Science Collaborations
  1. Supernovae M. Wood-Vasey (CfA)
  2. Weak lensing D. Wittman (UCD) B. Jain (Penn)
  3. Stellar Populations Abi Saha (NOAO)
  4. Active Galactic Nuclei Niel Brandt (Penn State)
  5. Solar System Steve Chesley (JPL)
  6. Galaxies Harry Ferguson (STScI)
  7. Transients/variable stars Shri Kulkarni
    (Caltech)
  8. Large-scale Structure/BAO Hu Zhan (UCD)
  9. Milky Way James Bullock (UCI) Beth Willman
    (CfA)
  10. Strong gravitational lensing Phil Marshall
    (UCSB)

200 signed on already, from member institutions
and project team.
42
New Science Opportunities
Go beyond survey for known phenomena. Consider
discovery potential for unknown
unknowns Design survey to maximize opportunity
in unexplored parts of flux-time-color-position
space. Opportunities enabled via open data.
43
Value
  • What makes LSST and its data products uniquely
    valuable?
  • Unprecedented survey (2000 x SDSS plus time
    domain)
  • 20 billion objects
  • High precision, high uniformity
  • Open source, open data
  • Bridge to CS, Math, Stat
  • Cyber-enabled Discovery and Innovation
  • Promotes and enables research
  • Leverages existing facilities
  • Needed now
  • Movie of the universe opens new windows
  • Broader impact

44
LSST Repeatedly Ranked High Priority
  • NRC 2000 Astronomy Decadal Survey
  • NRC New Frontiers in the Solar System
  • NRC Quarks-to-Cosmos
  • SAGENAP
  • Quantum Universe
  • Physics of the Universe
  • Dark Energy Task Force P5 HEPAP

45
US Federal Agency participation
LSST Telescope / Site / Data System NSF AST
Wide range of astronomy and physics from
LSST. Open data / open source. Breakthrough
Astronomy. LSST Camera DOE HEP Dark energy.
Multiple unique wide-deep probes. Possible 100x -
1000x increase in sensitivity over DETF Stage
III Share of operations NASA Potentially
Hazardous Asteroid survey mandated by
Congress. Future share of operations?
46
P5 report at HEPAP May 2008
47
24 LSSTC US Institutional Members
  • Brookhaven National Laboratory
  • California Institute of Technology
  • Carnegie Mellon University
  • Columbia University
  • Google Inc.
  • Harvard-Smithsonian Center for Astrophysics
  • Johns Hopkins University
  • Las Cumbres Observatory
  • Lawrence Livermore National Laboratory
  • National Optical Astronomy Observatory
  • Princeton University
  • Purdue University
  • Research Corporation
  • Rutgers University
  • Stanford Linear Accelerator Center
  • Stanford University KIPAC
  • The Pennsylvania State University
  • University of Arizona
  • University of California, Davis
  • University of California, Irvine
  • University of Illinois at Champaign-Urbana
  • University of Pennsylvania
  • University of Pittsburgh
  • University of Washington

48
Foreign participation
  • IN2P3 France (camera focal plane
    electronics)
  • All Europe interested (synergy with VLT
    spectroscopy)
  • German consortium
  • Astronet document assumes LSST data
  • ESO plans LSST data access spectroscopic
    facility
  • UK consortium
  • Liverpool meeting next month
  • Chilean astronomy community joining

49
Transformative Data Products
  • Calibration and Quality Assessment
  • Database must be high quality
  • The utility of our data will be enabled.
    Avoid releasing garbage!
  • Open Data / Open Source
  • Transient alerts - world public instantly
  • Validated metadata releases
  • 2008 NRC study Data Integrity in the
    Petascale Era

50
IT CEOs at LSST High Fire event
51
Readiness
  1. LSST will transform astronomy and accordingly has
    broad support (community, science collaborations,
    member institutions, etc.)
  2. It will have a major impact on many other fields
    high energy physics, the congressional mandate
    on asteroids, the database initiative, science
    education
  3. The cost / performance risk to the NSF is low
  4. We are actively exploring sharing operations
    costs
  5. We are ready
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