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Results for “ORBITAL CALCULATION”

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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At least 307 records · Page 17

All sources NASA NTRS DOE OSTI

NASA NTRS1966

A uniformly valid asymptotic representation of satellite motion around the smaller primary in the restricted three-body problem.

Perturbation technique to study three-body problem of motion of close satellite

PERTURBATION↗

NASA NTRS1966

Orbit determination with the Davidon method.

Orbit determination with Davidon method in obtaining maximum likelihood values

TRAJECTORY OPTIMIZATION↗

NASA NTRS1966

A study of planetary-approach orbit- determination policies using Mariner IV DOPPLER data

Planetary approach orbit determination target errors using Mariner IV Doppler tracking data

DOPPLER RADAR↗

NASA NTRS1966

Timing data and the orbit determination process at JPL

Timing data and real time orbit determination computer program

COMPUTER PROGRAM↗

NASA NTRS1966

The influence of oscillator instability on orbit accuracy

Influence of Doppler tracking system oscillator instability on orbit accuracy

OSCILLATOR↗

NASA NTRS1966

Orbit determination of two spacecraft through the use of earth-based multiple-link Doppler tracking data

Orbit determination of two spacecraft using earth based multiple link Doppler tracking data

SPACECRAFT ORBIT↗

NASA NTRS1966

AOPB systems manual program description R 104 master orbit tape routine

Systems manual program description R 104 Master Orbit Tape Routine for computing inertial, geocentric, geodetic position, velocity, real field, and geomagnetic data for satellites

TAPE MERGE↗

NASA NTRS1966

Entry capsule orbit determination accuracy

On-board tracking system of two-way coherent Doppler between entry capsule and orbiting bus for determining orbit of entry capsule and estimating atmospheric parameters.

COHERENT RADAR↗

NASA NTRS1966

Pioneer project support

Launching and orbit determinations of Pioneer VII space probe

DEEP SPACE↗

NASA NTRS1967

Payload to Mars reconnaissance orbit using present and future booster systems

Booster and upper stage system capabilities of placing payloads into Mars orbit

PAYLOAD↗

NASA NTRS1966

The effects of the nodal regression of the orbit on the gravity precession of a gyroscopic satellite

Effect of nodal regression of orbit on gravity gradient precession of gyroscopic satellite in testing general theory of relativity

MOMENTUM PRECESSION↗

NASA NTRS1967

Orbital prediction and differential correction using Vinti's spheroidal theory for artificial satellites

Orbital prediction and differential correction using Vintis spheroidal theory for artificial satellites

SATELLITE ORBIT↗

NASA NTRS1966

Methods of regularization for computing orbits in celestial mechanics

Numerical and analytical methods for orbit computation in celestial mechanics during and beyond collision by introduction of regularized coordinates

ORBIT CALCULATION↗

NASA NTRS1967

Manned orbiting stopover round trips to Venus are studied for departure dates between 1975 and 1986 over a range of trip times and stay times. The use of highly elliptic parking orbits at Venus leads to low initial weights in Earth orbit compared with circular orbits. For the elliptic parking orbit, the effect of constraints on the low altitude observation time on the initial weight is shown. The mission can be accomplished with the Apollo level of chemical propulsion, but advanced chemical or nuclear propulsion can give large weight reductions. The Venus orbiting mission weights than the corresponding Mars mission.

LAUNCH DATE↗

NASA NTRS1967