Normalized hodographic mapping for constrained trajectory families
Normalized hodographic mapping for constrained trajectory families, discussing mapping concepts, information content and applications
Sun, F. T.↗
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Results for “Trajectory”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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An optimal, analytic solution to the linear- gravity, constant-thrust trajectory problem
Constant-thrust trajectory problem with gravitational acceleration as linear function of radius vector, obtaining minimum fuel solution in integrals
Jezewski, D. J.↗
Orbit and attitude dynamics and the Goddard Trajectory Determination System
Goddard trajectory determination system, discussing attitude dynamics, data preparation, differential correction and orbit information
Siry, J. W.↗
Performance evaluation of candidate strapdown and gimballed systems using nominal and abort shuttle trajectories
Space shuttle guidance, evaluating performance of strapdown and gimballed systems by nominal and abort trajectories
Mckern, R. A.↗
Approximate optimal atmospheric entry trajectories
Reentry glider approximate optimal atmospheric entry trajectories for maximizing function of terminal velocity, altitude, flight path and heading angle under terminal nonlinear constraints
Speyer, J. L.↗
Optimal round trip space tug trajectories for earth escape missions
Space tug optimal round trip trajectories for payload earth escape injection missions, obtaining boundary value problem solution by Newton- Raphson iteration technique
Teren, F.↗
A trajectory aiming plane to assist in satellite orbit selection for planetary reconnaissance missions
Trajectory aiming plane in optimum satellite orbit selection for planetary flyby and orbiter missions
Borras, J. A.↗
Optimal analytic multiburn trajectories
Fuel optimal analytic multiburn transfer trajectories and shuttle rendezvous, assuming gravity vector linear dependence on position vector for burn arcs
Jezewski, D. J.↗
Applications of a mathematical programming technique to finite thrust rocket trajectory optimization
Iterative solution of least squares programming problem for finite thrust rocket trajectory optimization
Armstrong, E. S.↗
Integrating the relay link design and trajectory design for the Viking '75 mission
Relay data link and trajectory design integration for Viking orbiter 1975 mission
Marquet, D. W.↗
A general branched trajectory optimization algorithm with applications to space shuttle vehicle mission design
Branched trajectory optimization algorithm using steepest descent method applied to space shuttle vehicle mission design
Rozendaal, H. L.↗
Near optimal shuttle trajectories using accelerated gradient methods
Optimal ascent trajectories for delta wing space shuttle flight, using accelerated gradient methods
Johnson, I. L.↗
Characteristics of trajectories that fly by Jupiter and Saturn and return to Earth
Earth-Jupiter-Saturn-earth flyby trajectories, determining mission planning parameters
Anson, K. W.↗
Optimal round trip space tug trajectories for earth escape missions
Reusable space tug payload injection missions, determining optimal round trip trajectories at earth escape energy levels
Teren, F.↗
Calculation of trajectories utilizing a slowly-varying Jacobi function
Earth-moon and other trajectories calculation in planar elliptic restricted three body problem by slowly varying Jacobi function
Culpepper, B.↗
The reduction of VTOL operational noise through flight trajectory management
Prop rotor and lift fan VTOL aircraft ground noise level reduction, using flight trajectory management
Schmitz, F. H.↗
Wind trajectory tracing for air pollution studies (AIRPOL)
Wind trajectory computer program, consisting of data handling program and analysis program, traces Los Angeles Basin wind patterns either backward or forward in time. Program may be applicable to other areas.
Street, A. B.↗
Interplanetary Trajectories, Encke Method (ITEM)
Modified program has been developed using improved variation of Encke method which avoids accumulation of round-off errors and avoids numerical ambiguities arising from near-circular orbits of low inclination. Variety of interplanetary trajectory problems can be computed with maximum accuracy and efficiency.
Whitlock, F. H.↗