Transcript GLAST LAT Project Gamma-ray Large Area Space Telescope Experimental Program Advisory Committee, January 25.

GLAST LAT Project
Gamma-ray Large
Area Space
Telescope
Experimental Program Advisory Committee, January 25. 2006
GLAST Large Area Telescope:
Project Status
Lowell A. Klaisner
Stanford Linear Accelerator Center
Project Manager
[email protected]
650-926-2726
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Gamma Ray Large Area Telescope
• Next observatory to be
Launched by NASA
– Fall of 2007
• Extends the scientific reach
in the gamma ray spectrum
– Higher energy
– Greater sensitivity
– Better resolution
• Next in a set of space-based observatories that cover the
spectrum from microwaves through gamma rays
• Windows on the Universe
– Improved capability to study the time evolution of the
energy spectrum of transient phenomenon
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
NASA Space Observatories
WMAP
Spitzer
Chandra
Hubble
GLAST
Swift
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
GLAST Mission Summary
•Objective:
Larger field of view (FOV), higher sensitivity, and
broader energy detection range than any previously flown gamma-ray
mission.
•Mission Duration:
5 yrs (10 yr Goal)
•Orbit:
565 km Circular, 28.5° Inclination
•Launch Date:
Fall 2007
•Launch Vehicle:Delta 2920H-10
•Launch Site:
Kennedy Space Center
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Observatory Layout
+Z (Yaw)
Launch Config.
LAT
+Y
(Pitch)
+X
(Roll)
LAT Radiator
Optical Bench
and Skirt
Assembly
3 Star Trackers
and SIRU
Hydrazine Propellant Tank
GBM NaI Detectors (x12)
GBM Power
Supply Box
3 Panel Solar Array
GBM Data
Processing Unit
GBM BGO Detector (x2)
Single Axis S/A Drive
S-Band Antennas
125 Ahr Battery
Ku-Band Antenna
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Instrument Structure
Anti Coincidence Detector -- GSFC
16 Tracker Modules – UCSC, Italy &
Japan
Grid -- SLAC
16 Calorimeter Modules – NRL &
France and Sweden
Electronics Modules -- SLAC
Radiators -- SLAC
Integration and Test -- SLAC
Mass
Power
Rev. B
3000 Kg
650 Watts
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Master Schedule
•
LAT complete and tested
March 2006
– To Naval Research Laboratory for
environmental testing
•
Delivery to Observatory Integration
June 2006
– Mate with spacecraft and GBM and test
•
Launch
– Kennedy Space Center
Fall 2007
Spitzer Launch on a
Delta II
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Status
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•
•
•
•
•
•
Rev. B
All flight hardware in building 33
– All but 3 Event Processing Units installed
• EPUs installed next week
– All the detectors have been tested
Installing flight software and associated ground support systems
System test at SLAC
Environmental test at Naval Research Laboratory, Washington, D.C.
Hand off to NASA at GA/SASS in Phoenix, AZ
NASA Budget for LAT through Launch
– FY06 $18.2M
– FY07 $11.6M
DOE supports the Instrument Science Operating Center through
SLAC operating funds
– Capped by OMB at $5M per year
– Support for GLAST related scientists at approximately $2.5M per
year
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Tracker
• Eighteen flight tracker modules completed by the team at INFN
Pisa, Italy
INFN Team
with the 16th
flight
module
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Calorimeter
Completed environmental testing on last 4 CAL modules
(FM 115 – FM 118) in April, 2005
Preparing CAL #18 and flight qual
TEM/TPS for thermal vacuum testing
Rev. B
Last 4 CALs (in thermal shields)
installed in “Big Blue” TVAC at NRL.
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Anti-Coincidence Detector
ACD before installation
of Micrometeoroid Shield
Rev. B
ACD with Micrometeoroid
Shield and Multi-Layer
Insulation (but without
Germanium Kapton outer layer)
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
+Y Radiator ready for edge taping
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
2nd Grid mounted on Spacecraft Flexures
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
LAT Prior to Installing the
Anti Coincidence Detector
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
ACD on the LAT
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Data Acquisition System
SIU
SIU
[EPU]
GASU
GASU
[EPU]
Rev. B
PDU
PDU
[EPU]
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
16 Towers with ACD
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Instrument Science Operating Center
•
•
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•
Rev. B
ISOC Operations Facility at SLAC
– Will be located at SLAC in Bldg 84 (Central Lab Annex)
Operations systems
– Operations procedures
Science systems
– Science Analysis Software
– Science tools development
– Data Challenges
• March to May this year – 30 day simulation
Other ISOC support facilities
– Support testing at Spectrum Astro Space Systems
– Support early orbit operations at Mission Operating Center
– Support ground system development and testing
– Beam Test Support
• Data taking at CERN, Summer/Autumn 2006: data
archiving and transfer to SLAC
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
ISOC floor plan building 84
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Next Steps
• FY06 – Complete and test instrument and hand off to NASA
• FY07 – Support observatory testing and establish instrument
ground systems including the ISOC at SLAC
• FY08 – Begin science with an all sky survey
• FY09 through FY17 – Continue discovery-based science
Rev. B
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GLAST LAT Project
Experimental Program Advisory Committee, January 25. 2006
Conclusion
“But if we look beyond our current fiscal circumstances, there is reason
to be hopeful. First, we have some amazing astronomical
capabilities in space, and we will soon add to them. We are looking
forward to the next major high-energy astrophysics mission, the
Gamma-ray Large Area Space Telescope, scheduled for launch in
late 2007. GLAST will be a tremendous new facility for the
astronomy, astrophysics, and particle physics communities. In
addition to making observations of the highest-energy behavior of
gamma-ray bursts – following on the breakthrough work of the
Compton Gamma-ray Observatory – GLAST will open a wide new
window on the gamma-ray sky. Cosmic gamma rays characterize
the highest-energy phenomena in the Universe, they allow us to
probe the history of star formation through their interactions with
ultraviolet light, and, with GLAST’s significant leap in capabilities
they may also be messengers of as yet to be discovered laws of
physics.”
Remarks at American Astronomical Society
Washington, D.C.
Michael D. Griffin
Administrator
National Aeronautics and Space Administration
10 January 2006
Rev. B
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