CONSTANTS AND RELATED DATA USED IN TRAJECTORY CALCULATIONS AT THE JET PROPULSION LABORATORY
Constants and related data used in trajectory calculations at jet propulsion laboratory
MARINER PROGRAM↗
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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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THEORY AND APPLICATION OF THE CRITICAL DIRECTION METHOD OF TRAJECTORY OPTIMIZATION
Theory and application of the critical direction method of trajectory optimization
TRAJECTORY↗
TRAJECTORY CONSIDERATIONS FOR THE RETURN TO EARTH PHASE OF LUNAR MISSIONS
Trajectories for return to earth phase of lunar missions
TRAJECTORY↗
The Restricted Three-Body-Problem as a Perturbation of Euler's Problem of Two Fixed Centers and Its Application to Lunar Trajectories
The restricted Three-Body-Problem considers the motion of an infinitesimal mass under the gravitational attraction of two finite masses, which revolve about their common center of gravity in coplanar circles. It is well known that Euler's problem of two fixed centers, consisting of the motion of an infinitesimal mass under the gravitational attraction of two finite masses fixed in space, can be solved by elliptic functions. The idea presented here is to take the solution of Euler's problem as the solution of the restricted Three-Body-Problem by allowing the initial values to be functions of time now. Differential equations for the perturbed initial values are established. These equations can be given in closed form by using the fact that the transformation to the perturbed initial values of Euler's problem is canonical. Thus, an approximation can be obtained for the solution of the restricted Three-Body-Problem. The method can also be used to represent classes of neighboring trajectories for guidance purposes.
Euler equation↗
LAUNCH WINDOW STUDIES EMPLOYING VARIATIONAL CALCULUS TO DETERMINE OPTIMUM THREE DIMENSIONAL TRAJECTORIES LEADING TO INJECTION INTO A SPACE-FIXED CIRCULAR ORBIT
Determination of optimum trajectories leading to circular orbits
CIRCULAR ORBIT↗
OPTIMUM LOW-ACCELERATION TRAJECTORIES FOR INTERPLANETARY TRANSFERS
Optimum low acceleration trajectories for interplanetary transfer orbits
ACCELERATION↗
A FLIGHT EVALUATION OF LUNAR LANDING TRAJECTORIES USING A JET VTOL TEST VEHICLE
Flight evaluation of lunar landing trajectories using jet vtol test vehicle
JET AIRCRAFT↗
EARTH-VENUS TRAJECTORIES, 1964, VOLUME 1, PART A
Earth-venus trajectories, 1964 - vol. 1, part a
INTERPLANETARY TRAJECTORY↗
AN APPLICATION OF CALCULUS OF VARIATIONS TO THE OPTIMIZATION OF MULTISTAGE TRAJECTORIES
Spacecraft guidance - multistage rocket trajectories
TRAJECTORY↗
AN APPLICATION OF A SUCCESSIVE APPROXIMATION SCHEME TO OPTIMIZING VERY LOW-THRUST TRAJECTORIES
Spacecraft guidance - low thrust propulsion trajectories
TRAJECTORY↗
A TECHNIQUE FOR OPTIMUM FINAL VALUE CONTROL OF POWERED FLIGHT TRAJECTORIES
Control of acceleration vector of powered flight trajectory
TRAJECTORY CONTROL↗
THREE-DIMENSIONAL LOW-THRUST INTERPLANETARY TRAJECTORY OPTIMIZATION
Low thrust propulsion interplanetary trajectory flight optimization - guidance systems
FLIGHT OPTIMIZATION↗
A REFERENCE SOLUTION FOR LOW-THRUST TRAJECTORIES
Low thrust trajectory analysis - guidance systems
LOW THRUST PROPULSION↗
Handling Qualities and Trajectory Requirements for Terminal Lunar Landing, as Determined from Analog Simulation
Trajectory requirements for terminal lunar landing from analog simulation of spacecraft
LUNAR LANDING↗
TRAJECTORY SIMULATION APPLICABLE TO STABILITY AND CONTROL STUDIES OF LARGE MULTI-ENGINE VEHICLE
Trajectory simulation for stability and control studies of multiengine boosters
BOOSTER↗
A DISCUSSION OF GUIDANCE POLICIES FOR MULTIPLE-IMPULSE CORRECTION OF THE TRAJECTORY OF A SPACECRAFT
Guidance policies for multiple-impulse correction of spacecraft trajectory
SPACECRAFT TRAJECTORY↗