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  • Brown, L. R. (1995)
    To support the remote sensing of the outer planets, absorption spectra of H2O
  • Dissly, R. W.; Allen, M.; Anicich, V. G. (1994)
    Experiments simulating the codeposition of molecular hydrogen and water ice on interstellar grains demonstrate that amorphous water ice at 12 K can incorporate a substantial amount of H***, up to a molar ratio of H***/H***O=0.53.
  • Brown, L.R.; Peterson, D.B. (1993-10-17)
  • Mikellides, Ioannis G.; Katz, Ira; Hofer, Richard H.; Goebel, Dan M. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009, 2009-09-20)
    A computational approach that has been used extensively in the last two decades for Hall thruster simulations is to solve a diffusion equation and energy conservation law for the electrons in a direction that is perpendicular ...
  • Lo, M. W. (1997-02-09)
    In recent years, halo orbits around the Sun-Earth Lagrange points, L1 and L2, have become extremely opular for NASA missions due to the ideal observation environment and low launch energy.
  • Lo, M.; Serban, R.; Petzold, L.; Koon, W.; Ross, S.; Marsden, J.; Wilson, R. (2000)
    This paper addresses the computation of the required trajectory correction maneuvers (TCM) for a halo orbit space mission to compensate for the launch velocity errors introduced by inaccuracies of the launch vehicle.
  • Lambrigtsen, Bjorn H.; Riley, A. L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2001., 2001-08-28)
    WAMSR is a millimeter wave atmospheric temperature and humidity sounder that utilizes state of the art technology to enable substantial reductions in size and mass while at the same time achieve improved measurement ...
  • Nickels, Kevin; Huber, Eric; DiCicco, Matthew (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007., 2007-03-03)
    The project described in this paper designed and implemented a hand-eye calibration method for manipulators under observation by stereo cameras. This method has been utilized on Johnson Space Center's Robonaut, and on a ...
  • Himelblau, H.; Wise, J. W.; Piersol, A. G.; Grundvig, M. R. (1994)
    The original motivation for this Handbook came from personnel of The Aerospace Corporation (TAC), who are technical advisors to the Air Force Space and Missile Systems Center. Over the preceding two decades, TAC has observed ...
  • Pitesky, J.; Steadman, K.; Ray, T.; Burton, M. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2014, 2014-05-05)
  • Pitesky, Jo Eliza; Steadman, Kim; Ray, Trina; Burton, Marcia (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2014, 2014-05-05)
    The Cassini mission has been in orbit for eight years, returning a wealth of scientific data from Titan and the Saturnian system. The mission, a cooperative undertaking between NASA, ESA and ASI, is currently in its second ...
  • Roettger, E.; Buratti, B. (1993-10-18)
    This paper describes ways to make to hands-on activities more closely aligned with the science education guidelines of the National Science Standards and the California Science Framework.
  • Alvidrez, Richard (1996)
    Technology in school is a hot topic for discussion these days. Technology in this context is synonymous with computers and telecommunications. Schools are being asked to enter the information age by investing in more ...
  • Dvorak, Daniel L.; Reinholtz, William K (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004., 2004-10-24)
    In the domain of hard real-time systems, which language is better: C++ or the Real-Time Specification for Java (RTSJ)? Although ordinary Java provides a more productive programming environment than C++ due to its automatic ...
  • Gat, E. (2000-03-18)
    This paper describes tickets, a computational mechanism for hard-real-time autonomous resource management. Autonomous spacecraftcontrol can be considered abstractly as a computational process whose outputs are spacecraft commands.
  • Lee, C.I.; Rax, B.G.; Johnston, A.H. (1995-07)
    Many different analog-to-digital converters (ADCs) have been
  • Lee, C. I.; Rax, B. G.; Johnston, A. H. (1995-07)
    Discussed are hardness assurance and testing techniques to test and evaluate total dose radiation degradation of high resolution A/D converters. Because high-speed, high-resolution converters are critical parts in a digital ...
  • Lee, C. I.; Rax, B. G.; Johnston, A. H. (1996-07-15)
    Hardness Assurance (HA) techniques and total dose radiation characterization data for new generation linear and COTS devices from various manufacturers are presented. A bipolar op amp showed significant degradation at ...