1–20 of 30 hits
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    Extreme Ultraviolet Explorer attitude determination support with a multimission three-axis stabilized spacecraft flight dynamics support system

    Harman, Richard / Lee, Michael | NTRS | 1993
    The Extreme Ultraviolet Explorer (EUVE) was launched June 7, 1992 by an expendable Delta 2 launch vehicle. The Flight Dynamics Facility ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Comparison of TOPEX/Poseidon orbit determination solutions obtained by the Goddard Space Flight Center Flight Dynamics Division and Precision Orbit Determination Teams

    Doll, C. / Mistretta, G. / Hart, R. et al. | NTRS | 1993
    Orbit determination results are obtained by the Goddard Space Flight Center (GSFC) Flight Dynamics Division (FDD) using the Goddard ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Lost in space: Onboard star identification using CCD star tracker data without an a priori attitude

    Ketchum, Eleanor A. / Tolson, Robert H. | NTRS | 1993
    There are many algorithms in use today which determine spacecraft attitude by identifying stars in the field of view of a star tracker ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Atlas IIAS ascent trajectory design for the SOHO mission

    Willen, Robert E. / Rude, Bradley J. | NTRS | 1993
    In 1995, an Atlas IIAS launch vehicle will loft the Solar and Heliospheric Observatory (SOHO) as part of the International Solar and ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Transfer trajectories for distant retrograde orbiters of the Earth

    Ocampo, Cesar A. / Rosborough, George W. | NTRS | 1993
    system. Several classes of DRO's in the Sun-Earth/Moon system are presented. The associated launch and insertion energies for impulsive and ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Precision orbit determination using the Tracking and Data Relay Satellite System (TDRSS)

    Roesset, P. / Lundberg, J. B. / Tapley, B. D. | NTRS | 1993
    stations. Tracking data collected by TDRSS is often used to compute orbital solutions for moperational mission requirements. Investigations are in ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Postlaunch calibration of spacecraft attitude instruments

    Davis, W. / Hashmall, J. / Garrick, J. et al. | NTRS | 1993
    inevitably cause changes in sensor parameters. During the mission, these parameters may continue to drift requiring repeated on-orbit calibrations ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Upper Atmosphere Research Satellite attitude disturbances during shadow entry and exit

    Lambertson, M. / Underwood, S. / Woodruff, C. et al. | NTRS | 1993
    important in assessing the implications for UARS science gathering and for future mission design analysis. To this end, UARS attitude, sensor, and ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Optimum transfer to a large-amplitude halo orbit for the Solar and Heliospheric Observatory (SOHO) spacecraft

    Stalos, S. / Folta, D. / Short, B. et al. | NTRS | 1993
    The Solar and Heliospheric Observatory (SOHO), built by the European Space Agency to study the Sun as part of the International Solar ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Precision X-band Doppler and ranging navigation for current and future Mars exploration missions

    Estefan, Jeffrey A. / Pollmeier, Vincent M. / Thurman, Sam W. | NTRS | 1993
    parameters, navigation accuracies of 5 to 15 km (1 sigma) can be achieved, equivalent to 15 to 40 nrad in geocentric angle uncertainty. ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Reentry analysis for low Earth orbiting spacecraft

    Newman, Lauri Kraft / Folta, David C. / Ross, Brian P. et al. | NTRS | 1993
    risk to man, an analysis must be done to determine which parts of the spacecraft are likely to survive a reentry of the Earth's atmosphere and ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Orbit determination covariance analysis for the Deep Space Program Science Experiment mission

    Beckman, M. / Yee, C. / Lee, T. et al. | NTRS | 1993
    accuracy for each mission phase and before and after each major orbit perturbation, such as orbit maneuvers and flybys of the Earth and Moon. In ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Precise navigation for the Earth Observing System (EOS)-AM1 spacecraft using the TDRSS Onboard Navigation System (TONS)

    Folta, David C. / Elrod, Bryant / Lorenz, Mark et al. | NTRS | 1993
    . Improvements in navigation accuracies by using enhanced gravity models beyond the Goddard Earth Model (GEM)-T3 are also discussed. Key objectives of ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Application of high precision two-way S-band ranging to the navigation of the Galileo Earth encounters

    Pollmeier, Vincent M. / Kallemeyn, Pieter H. / Thurman, Sam W. | NTRS | 1993
    utilizing a traditional Doppler/range filter strategy. In addition, the navigation accuracy achieved with precision ranging was comparable to that ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    The effect of high lift to drag ratio on aerobraking

    Crouse, Patrick / Lewis, Mark | NTRS | 1993
    less than 1 G in about 15 minutes. The entrance velocities are greater than those for a more conventional biconic configuration with similar ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Conservative force model performance for TOPEX/Poseidon precision orbit determination

    Marshall, J. Andrew / Luthcke, Scott B. | NTRS | 1993
    data collected, mission requirements dictate that TOPEX/Poseidon's orbit must be computed at an unprecedented level of accuracy. In order to ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Trajectory design for the Deep Space Program Science Experiment (DSPSE) mission

    Carrington, D. / Carrico, J. / Jen, J. et al. | NTRS | 1993
    the spacecraft and will conduct mission operations. The Goddard Space Flight Center's (GSFC) Flight Dynamics Division is supporting NRL in the ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Interactive method for planning constrained, fuel-optimal orbital proximity operations

    Abramovitz, Adrian / Grunwald, Arthur J. | NTRS | 1993
    the system was found to be very easy, and did not require any previous in-depth knowledge of orbital dynamics or trajectory. The planning tool ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Fast Auroral Snapshot performance using a multi-body dynamic simulation

    Zimbelman, Darrell / Walker, Mary | NTRS | 1993
    , positioned in a 83 deg inclination, 350 x 4200 km orbit. For this study, a three-axis, non-linear, seven body dynamic simulation is developed using ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)

    Impact of suntracking on Space Station controllability

    Chipman, Richard / Hu, Tsay-Hsin G. / Barber, Mark et al. | NTRS | 1993
    The multibody dynamics of the Space Station is studied as affected by the suntracking motions of the photovotaic arrays. Dynamic responses ...
    Publisher: American Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)