LSST Program and Development Status
Kirk Gilmore
SLAC/KIPAC/LSST
July 7, 2008
SLAC Annual Program Review
Page 1
Development of the LSST concept
LSST is motivated by massively parallel astrophysics to answer a wide range
of today’s pressing questions in cosmology and fundamental physics
Astronomy
LSST
Physics
Endorsed by
several NAS
panels and
reports on
astronomy and
high energy
physics
2000-2002
Community
Committee
Developed
“Towards the
LSST Design
Reference
Mission”
Strauss et. al.
2004
LSST Science
Requirements
Document
“LSST: From
Science Drivers
to Reference
Design to
anticipated
Data Products”
Ivezic et. al.
LSST Science
Council
2008
www.lsst.org
Astro-ph:
0805.2366
2006
LSST probes 100x fainter & enables the exploration
July 7, 2008 of the time
SLAC
Annual Program Review
domain.
Page 2
LSST Science Requirements focus on 4
Representative and Divergent Programs
Dark Energy-Dark Matter
Exploring our Solar System
LSST enables
multiple
investigations into
our understanding of
the universe
“Movie” of the Universe: time domain
LSST will find 90%
of hazardous NEOs
down to 140 m in
10 yrs
Mapping the Milky Way
Discovering the
transient and
unknown on
multiple time
scales
July 7, 2008
SLAC Annual Program Review
LSST will map
the rich and
complex
structure of our
Galaxy.
Page 3
Key LSST HEP 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
July 7, 2008
SLAC Annual Program Review
Page 4
LSST has submitted an NSF proposal for
$242 M of Construction funding
* Construction proposal submitted in February 2007
– 60 Month Construction and Commissioning
– Ready for MREFC Funds in FY2010 - Expect in FY 2011
– Proposed as Public Private Partnership to Share costs
• NSF MREFC - $242 M
• DOE HEP - $50 M
• Private - $100 M
(FY06 $ with Contingency)
* Current Design and Development
–
–
–
–
NSF 4yr Award = $14.2 M
DOE Lab Participation
Partner In-Kind
Private Donation
* Operations and Maintenance
– Summit, Base, Archive, Data Centers = $45 M/yr (2016)
July 7, 2008
SLAC Annual Program Review
Page 5
The LSST proposed schedule
July 7, 2008
SLAC Annual Program Review
Page 6
Summary of LSST project progress
since last DOE Program Review
1.
Recent Project and Camera Developments
A.
B.
C.
D.
E.
2.
Camera Schedule
A.
B.
C.
D.
E.
3.
$20M award from Charles Simonyi & $10M from Bill Gates - Primary/Tertiary mirror fabrication
$1.5M from Keck Foundation and $1.2M from Eric Schmidt (Google CEO): Total = $2.7M - Sensor prototyping (RFP)
Conceptual Design Review in September 07 (CoDR-NSF)
IN2P3 (France) involvement is evolving (~$600K M&S in 08/09 + in-kind FTE)
AAS in Austin - 28 Posters (on http://www.lsst.org)
SPIE in Marseille - 12 Papers on LSST
Currently in R&D - 53 people/14 institutions and universities
Anticipated transition to MIE (construction) in 2010
Telescope first light 2014
System first light 2015
Full science in 2016
Camera Budget
A. Working primarily with SLAC M&S
B. Using budget to support reviews via prototyping and analysis:
M&S and labor and FPT to outside institutions
C. IN2P3 ramping up
4.
Science
A. Science collaborations (10) starting to engage and establish projects
B. Science Requirements Document established
5.
LSST Project/camera related Events
A. P5
B. LSST Project All-hands meeting in May (~150 people)
C. PDR (NSF) 2nd qtr FY09; CD-1 (DOE) ~same time
July 7, 2008
SLAC Annual Program Review
Page 7
The LSST Project is a Complete System:
Image, Analysis, Archive, Publish and Outreach
Camera
Telescope and Site
Cerro Pachon
La Serena
Education and Public Outreach
July 7, 2008
Data Management
SLAC Annual Program Review
Page 8
Main SLAC activity: development of LSST camera
Science drivers for the LSST camera
1.
2.
3.
4.
Constraining Dark Energy and Dark Matter
Taking an Inventory of the Solar System
Exploring the Transient Optical Sky
Mapping the Milky Way
Major Implications to the Camera
1.
2.
3.
4.
Large Etendue
Excellent Image Quality and Control of PSF Systematics
High Quantum Efficiency over the Range 330 – 1,070 nm
Fast Readout
July 7, 2008
SLAC Annual Program Review
Page 9
LSST camera concept
Back Flange
Valve Box
Filter Carousel
Cryostat
Filter
Filter Auto Changer
L1/L2 Assembly
Utility Trunk
Shutter
July 7, 2008
SLAC Annual Program Review
Page 10
LSST Camera Deliverable Org Chart
SLAC/LSST M&S to outside institutions via Financial Plan Transfer
Electronics
Oliver
(Harvard)
WBS 3.5.8
Optics
Olivier
(LLNL)
WBS 3.5.5
Sensor/Raft
Development
Radeka/O’Connor
(BNL)
WBS 3.5.4
July 7, 2008
Cryostat
Assembly
Schindler
(SLAC)
WBS 3.5.7
Camera Body
Mechanisms
Nordby
(SLAC)
WBS 3.5.3
Calibration
Burke
(SLAC)
WBS 3.5.1
Data Acq. &
Control
Schalk
(UCSC)
WBS 3.5.6
SLAC Annual Program Review
Utilities
Nordby
(SLAC)
WBS 3.5.2
Corner Raft
WFS/Guider
Olivier
(LLNL)
WBS 3.5.9
Page 11
Sensors/Filters
Pain/Antilogus
(IN2P3)
LPNHE, LAL,
APC, LPSC,
LMA
Overview of Financial Data – FY2008
FY 2008 FTE by Job Category
LSST
Other, 1.2
FY 2008 Total M$ by Subsystem
LSST
Permanent
PhD, 1.7
Systems
Engineering,
0.2
Administrative
/ Technician,
0.1
Temporary
PhD, 0.8
Allocation of
PPA DPS, 0.3
Camera Body
& Mech, 0.8
Camera
Calibration, 0.2
Management,
0.6
Camera DAQ,
0.1
Graduate
Students, 0.0
Camera I&T
Planning, 0.0
Electronics, 0.8
Total FTE: 8.8
Engineer /
Computing
Professional,
5.0
July 7, 2008
Camera Optics,
0.3
Total M$ of LSST: 3.2
SLAC Annual Program Review
Cryostat
Assembly, 0.2
Page 12
Overview of Financial Data 2007-2010
FY 2007-2010 Total M$ by Cost Type
LSST
10.0
9.0
8.0
(
M
$
7.0
6.0
)
5.0
4.0
3.0
2.0
1.0
FY07
FY08
Labor
July 7, 2008
M &S
FY09
FY10
Allocation of PPA DPS
SLAC Annual Program Review
Page 13
The LSST Camera Team: 72 People from
16 Institutions
Brandeis University
J. Besinger, K. Hashemi
Brookhaven National Lab
S. Aronson, C. Buttehorn, J. Frank, J.
Haggerty, I. Kotov, P. Kuczewski, M. May, P.
O’Connor, S. Plate, V. Radeka, P. Takacs
Florida State University
Horst Wahl
Harvard University
N. Felt, J. Geary (CfA), J. Oliver, C. Stubbs
IN2P3 - France
R. Ansari, P. Antilogus, E. Aubourg, S.
Bailey, A. Barrau, J. Bartlett, R. Flaminio, H.
Lebbolo, M. Moniez, R. Pain, R. Sefri, C. de
la Taille, V. Tocut, C. Vescovi
Lawrence Livermore National Lab
S. Asztalos, K. Baker, S. Olivier, D. Phillion,
L. Seppala, W. Wistler
Oak Ridge National Laboratory
C. Britton, Paul Stankus
Ohio State University
K. Honscheid, R. Hughes, B. Winer
July 7, 2008
Purdue University
K. Ardnt, Gino Bolla, J, Peterson, Ian Shipsey
Rochester Institute of Technology
D. Figer
Stanford Linear Accelerator Center G. Bowden, P. Burchat (Stanford), D. Burke, M.
Foss, K. Fouts, K. Gilmore, G. Guiffre, M. Huffer, S.
Kahn (Stanford), E. Lee, S. Marshall, M. Nordby, M.
Perl, A. Rasmussen, R. Schindler, L. Simms
(Stanford), T. Weber
University of California, Berkeley
J.G. Jernigan
University of California, Davis
P. Gee, A. Tyson
University of California, Santa Cruz
T. Schalk
University of Illinois, Urbana-Champaign
J. Thaler
University of Pennsylvania
M. Newcomer, R. Van Berg
SLAC Annual Program Review
Page 14
Major camera risk mitigation scheduled
prior to construction are buying down risk
R&D Effort
Plan
Status
Demonstrate sensor
performance
Establish all specs are
met:
Flatness, high fill factor,
electrical parameters,
mechanical packaging
Study phase sensors
received and being
evaluated. Prototype
contracts being generated.
Efficient sensor
procurement
Establish cost, yield and
performance of sensors
PO’s being drafted that
address risk areas.
Prototype phase starting
Establish reliability of
shutter and filter
mechanisms
Build prototype
mechanisms and test
Design completed.
Procurement of parts
begun
Evaluate outgassing
properties of cryostat
components
Contamination control
demonstrated in
engineering cryostat
Contamination testing
started. Materials
selection process begun.
75cm filter w/multilayer
coatings produced with
non-uniformity of <1% .
Fabrication of samples in
large coating chamber to
evaluate uniformity of filter
transmission
Passbands defined. Total
system throughput
modeled. Some witness
samples already
produced. RFP to
Page 15
potential vendors ready.
July 7, 2008
SLAC Annual Program Review
BNL and sensor group are providing leadship
for schedule driven sensor development
• Request for proposals for
prototype science CCDs
– issued Feb. 2008
– contract award June/July 2008
• 5 high-resistivity, thick CCDs
from study program have
been extensively characterized
– design models validated
– behavior of dark current, quantum efficiency, and
point spread function vs. thickness, temperature,
and electric field
– flatness and surface morphology
– antireflection coating
-50V
• CCD controllers for 4 new test labs under
construction
– UC Davis, SLAC, Paris, Purdue
– allows full-speed testing of segmented sensors
X-ray images
-10V
• Components for CCD/electronics chain testing
in assembly (Raft/Tower electronics:
prototype by end of year
July 7, 2008
SLAC Annual Program Review
Page 16
RFP for Prototyping Filters in 08
Specs
Half-Maximum Transmission Wavelength
• 75 cm dia.
• Curved surface
• Filter is concentric about the chief
ray so that all portions of the filter see
the same angle of incidence range,
14.2º to 23.6º
LSST Ideal Filter Set
100.0
System Throughput (%)
90.0
80.0
70.0
• Filter RFP being sent out to
selected vendors
60.0
50.0
u
g
r
i
z
y
40.0
• Filter prototyping will qualify
vendors to fabricate science
filters
30.0
20.0
10.0
0.0
300
400
500
600
700
800
900
1000
1100
Wavelength (nm)
July 7, 2008
SLAC Annual Program Review
Page 17
Other major efforts using SLAC resources
Main
MAIN
Chamber
FORE
Contamination test chamber at
SLAC
Camera Controls
Working is proceeding on plans to deliver
a prototype test stand by end of
calendar year 2008 - Goal by PDR
Fore or
Preparation
Chamber
July 7, 2008
cold
finger
SLAC Annual Program Review
Page 18
Conclusions
* LSST Camera R&D progressing well toward NSF full
LSST PDR, scheduled for early 2009.
* A contemporaneous DOE CD-1 would keep the project
on track to enable first light in 2016.
* Significant growth in this program is envisioned
beginning if FY10, with LSST replacing GLAST as the
major development effort in particle astrophysics and
cosmology at SLAC.
July 7, 2008
SLAC Annual Program Review
Page 19