SM050701-1640 Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Blue Line.

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Presentation transcript:

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Blue Line Engineering SBIRs –NAS –Fully Active Subscale Telescope (FAST) –NAS –AI Based, Self-Correcting, Self-Reporting Edge Sensors MSFC CDDF –Marshall Optical Control Cluster Computer (MOC 3 )

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Phase II completion date: March 26, 2002 Objectives: 1/8 Scale model of NGST yardstick Highly versatile testbed for NASA researchers Demonstration events in lab and exhibit hall Testbed Components Hinges, latches, actuators, and deployment mechanisms Seven, 33 cm diameter primary mirror segments Electronics for static figure correction & maintenance Motorized Stow/Deploy Diffraction-limited performance ( >2 microns) Blue Line Engineering NAS Fully Active Subscale Telescope (FAST)

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Xinetics. NAS Large, Cryogenic Ultralightweight Mirror Technology Optical Design Aperture: equivalent to 92.5 cm dia. filled circular (0.672 m 2 ) Obscuration: <10% Stowed:cyclinder 50 cm diam X 100 cm tall Prescription:parabolic, f/1.25, 2.5m focal length FOV:>4 arc minutes Segments:hexagonal FTF diameter:33.3 cm Thickness:1.8 cm Mass:< 1 kg/segment (35 kg total including electronics) Performance: Diffraction limit at 2 µm ( /14 = 143nm ~ 1/4 wave visible)

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 NAS AI Based, Self-Correcting, Self-Reporting Edge Sensors Phase I completion date: August 17, 2001 Objective feasibility of enhanced edge sensors to deploy, align, and phase match the primary mirror segments of space based telescopes Design Features operational env.: 30 °K >T> 370 °K fuzzy logic health & status monitoring self-reporting neural networks self-correcting self-tuning. new error compensation methods super accuracy multi-mode measurements phasing gap

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Phase I experimental testing computer simulation and modeling. In Phase II two standard model edge sensors developed, fully characterized documented.

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 MSFC CDDF Marshall Optical Control Cluster Computer (MOC 3 ) Project Schedule: FY01 & FY02 Investigators –PI:John Weir/ED19 –Co-I: Donald Larson/SD71 Objectives –10 3 fold increase in computing capability for managing active primary mirror segments –improved techniques for minimizing wave front error. –experience parallel computing technologies and software ground-based computer clusters embedded clusters in future spacecraft Beowulf Cluster Computer [after Ridge et al, 1997]

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 Plan: Purchase a Beowulf computer cluster and associated Linux software. Utilize the Beowulf in conjunction with optical test beds to develop the use of cluster computing for segmented mirror control. software for astronomy and wave front control, and application program - distributed computing (e.g. Fortran 99). Beowulf Background technology of clustering Linux computers to form a parallel, virtual supercomputer. one server node with client nodes connected together via Ethernet or some other network. no custom components; mass-market commodity hardware PC capable of running Linux, Ethernet adapters switches. Intiated in 1994 NASA High Performance Computing and Communications program Earth and space sciences project at the Goddard Space Flight Center. In October of 1996 Gigaflops sustained performance on a space science application for cost under $50K. MSFC CDDF Marshall Optical Control Cluster Computer (MOC 3 )

SM Advanced Optics & Energy Technology Center Advanced Mirror Technology Small Business Innovative Research Sandy Montgomery/SD71 MSFC CDDF Marshall Optical Control Cluster Computer (MOC 3 ) 7 Slave Node(s) 4U Rackmount ATX Case with 250 Watt UL Power Supply Dual Processor, 1 Ghz Intel Pentium III, 512 MB RAM, 20 GB HD Dolphin Interconnect’s Wulfkit Head Node 4U Rackmount ATX Case with 250 Watt UL Power Supply Dual Processor, 1 Ghz Intel Pentium III Dual Processor, 1 Ghz Intel Pentium III, 512 MB RAM, 20 GB HD 32x CD-R/W, SVGA with 32 MB, Tape back-up Dolphin Interconnect’s Wulfkit Accessories UPS Network Switch KVM Switch Rackmount Cabinet Software: Enhanced Red Hat Distribution Linux v 7.0 Portland Group Workstation 3.1 Compilers for C PVM, MPICH, LAM-MPI Communication Libraries ScaLAPACK with ATLAS Libraries Portable Batch System (PBS) Parallel Virtual File System PVFS Doglsed Administration and Monitoring Tool Lesstiff, Mesa (OpenGL), IBM Data Explorer SCA Linda (4 CPUs) MI/NASTRAN for the PC from Macro Industries “Huinalu”at MHPCC: 260 dual PIII 933 MHz nodes, each