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    L2 Earth atmosphere observatory : formation guidance, metrology, and control synthesis

    Acikmese, Behcet A. / Mettler, Edward / Breckenridge, William G. et al. | NTRS | 2004
    the synthesis and analysis of the guidance, metrology and control for a two-spacecraft formation in a unique continuously powered orbit near ...
    Verlag: NASA National Aeronautics and Space Administration

    Hubble Space Telescope Fine Guidance Sensor and Two-Gyro Control Law Design, Implementation, and On-Orbit Performance

    Clapp, Brian R. | NTRS | 2005
    magnetometers, star trackers, and Fine Guidance Sensors (FGSs) to control vehicle rate about the missing gyro axis. The three aforementioned sensors are ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Instrumentation And Photography

    Aerobrake guidance law synthesis using feedback linearization

    Menon, P. K. A. | NTRS | 1991
    nonlinear point-mass vehicle model with lift, bank angle and drag modulation as the three control variables. The guidance law uses detailed vehicle ...
    Verlag: NASA National Aeronautics and Space Administration

    Dynamics and Control of a Tethered Enhanced Gravity Tractor Performing Asteroid Deflection

    Shen, Haijun / Roithmayr, Carlos M. / Li, Yingyong | NTRS | 2018
    The dynamics and control of an Enhanced Gravity Tractor (EGT) augmented with a tether for deflecting an asteroid are studied. A ...
    Verlag: NASA National Aeronautics and Space Administration

    Cassini at Saturn Proximal Orbits - Attitude Control Challenges

    Burk, Thomas A. | NTRS | 2013
    control team deals with radiation hazards. The angular size and unique geometry of the rings and Saturn near periapsis means that star ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Lunar And Planetary Science And Exploration

    HUD Guidance for the ASKA Experimental STOL Aircraft using Radar Position Information

    Yazawa, Kenji / Terui, Yushi / Hardy, Gordon H. | NTRS | 1992
    The paper describes a high performance HUD guidance system installed on the experimental powered-lift STOL aircraft Aska. Since the maiden ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Aircraft Communications And Navigation

    Testing of the Lunar Reconnaissance Orbiter Attitude Control System Re-Design Without a Gyro

    Halverson, Julie / Calhoun, Phil / Hsu, Oscar et al. | NTRS | 2019
    observe various sciencetargets. LRO attitude control system (ACS) has two star trackers and a gyro forattitude estimation in an extended Kalman ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    Estimation and Modeling of Enceladus Plume Jet Density Using Reaction Wheel Control Data

    Lee, Allan Y. / Wang, Eric K. / Pilinski, Emily B. et al. | NTRS | 2010
    the known and unique transfer function between the disturbance torque and the attitude control error, the collected attitude control error ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

      Estimation and Modeling of Enceladus Plume Jet Density Using Reaction Wheel Control Data

      Lee, Allan Y. / Wang, Eric K. / Pilinski, Emily B. et al. | NTRS | 2010
      the known and unique transfer function between the disturbance torque and the attitude control error, the collected attitude control error ...
      Verlag: NASA National Aeronautics and Space Administration
      Schlagwörter: Lunar And Planetary Science And Exploration , Space Communications, Spacecraft Communications, Command And Tracking

    Estimation of Gravitation Parameters of Saturnian Moons Using Cassini Attitude Control Flight Data

    Krening, Samantha C. | NTRS | 2013
    of interest not only to scientists but also to attitude control engineers. When the Cassini spacecraft flies close to a moon, a gravity ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: attitude control

    Dynamic Control System Performance during Commissioning of the Space Technology 7-Disturbance Reduction System Experiment of LISA Pathfinder

    Hsu, Oscar / Maghami, Peiman / O’Donnell, James R., Jr. et al. | NTRS | 2017
    MicroNewton Thrusters, and Dynamic Control System (DCS) algorithms implemented on the IAU. During the portions of the mission in which the DRS was ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    CCD sensors for interplanetary spacecraft navigation and pointing control

    Eisenman, A. R. / Armstrong, R. W. | NTRS | 1981
    pointing control. Onboard processing of video data is a crucial element in this transition and is made possible by CCD imagers and microprocessors ...
    Verlag: NASA National Aeronautics and Space Administration

    New Worlds Observer Formation Control Design Based on the Dynamics of Relative Motion

    Luquette, Richard J. | NTRS | 2008
    timeline: science (fine pointing), realignment and transition. This paper examines formation control strategies in the context of dynamics of ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Lunar And Planetary Science And Exploration

    Estimation and Modeling of Enceladus Plume Density Using Attitude Control Data Collected by the Cassini Spacecraft During Low-Altitude Enceladus Flybys

    Wang, Eric K. / Lee, Allan Y. | NTRS | 2011
    30, 2004. Major science objectives of the Cassini mission include investigations of the configuration and dynamics of Saturn's magnetosphere ...
    Verlag: NASA National Aeronautics and Space Administration

    Control/structure interactions of Freedom's solar dynamic modules

    Quinn, R. D. / Yunis, I. | NTRS | 1990
    the presence of pointing and tracking requirements. A control approach is introduced for the simultaneous tracking and vibration control of ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    Attitude control system conceptual design for the X-ray timing explorer

    Bauer, Frank H. / Femiano, Michael D. / Mosier, Gary E. | NTRS | 1992
    structure and dynamics of compact X-ray sources, neutron stars, white dwarfs, and other stellar objects with X-ray energy emissions. The demanding ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    Pointing and figure control system for a space-based far-IR segmented telescope

    Lau, Kenneth | NTRS | 1993
    A pointing and figure control system for two space-based far-IR telescopes, the 10-20 m Large Deployable Reflector and the 3.6 m ...
    Verlag: NASA National Aeronautics and Space Administration

    Relative Terrain Imaging Navigation (RETINA) Tool for the Asteroid Redirect Robotic Mission (ARRM)

    Wright, Cinnamon A. / Van Eepoel, John / Liounis, Andrew et al. | NTRS | 2016
    As a part of the NASA initiative to collect a boulder off of an asteroid and return it to Lunar orbit, the Satellite Servicing Capabilities ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Guidance , Control

    OSIRIS-REx Touch-And-Go (TAG) Mission Design and Analysis

    Berry, Kevin / Sutter, Brian / May, Alex et al. | NTRS | 2013
    launching in 2016 to rendezvous with the near-Earth asteroid (101955) 1999 RQ36 in late 2018. After several months in formation with and orbit about ...
    Verlag: NASA National Aeronautics and Space Administration

    Application and Use of Lunar Node-Derived Beacons for Lunar Surface Navigation

    Evan J. Anzalone / Tamara Statham / Michael Fritzinger | NTRS
    To maximize the scientific return and safety of operations on the lunar surface, multiple civil organizations are investing in Position ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Space Communications, Spacecraft Communications, Command and Tracking

    Osiris-Rex Post-Tag Observation Trajectory Design and Navigation Performance

    Daniel R Wibben / Andrew Levine / Samantha Rieger et al. | NTRS
    created that satisfied the numerous constraints that were levied in order to place utmost importance on the safety of the spacecraft and stowed ...
    Verlag: NASA National Aeronautics and Space Administration

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