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Sun sensor design and environmental requirements study for the advanced pioneer spacecraft Final report
Sun sensor design and environmental requirements for Advanced Pioneer space probe
Probable observations of the geomagnetic tail at 103 RE by Pioneer 7
Pioneer VII observations of geomagnetic tail downstream of solar wind interaction at 900-1050 Earth radii
An efficient coding system for deep space probes with specific application to Pioneer missions
One-half rate convolutional encoding with sequential decoding for deep space probe telemetry links with application to Pioneer missions
Development of the interplanetary Pioneer spacecraft
Systems engineering aspects of developing Pioneer space probe
Pioneer VI detector to measure degree of anisotropy of cosmic radiation in energy range 7.5-90 MEV/nucleon.
Pioneer VI detector to measure degree of anisotropy of cosmic radiation at various energy ranges
The solar array for the Pioneer deep space probe.
Solar array as primary electrical power source of Pioneer deep space probes, comparing performance data with test and design data
Evidence, from Pioneer 10/11, Galileo, and Ulysses Data, for an Anomalous, Weak, Long-Range Acceleration
Radio metric data from the Pioneer 10/11, Galileo, and Ulysses Spacecraft indicate an apparent anomalous, constant, acceleration acting on the spacecraft with a magnitude ~8.5 x 10(sup -8) cm/s(sup 2), directed towards the Sun.
A route to understanding of the Pioneer anomaly
Here we discuss the Pioneer anomaly and present the next steps towards the understanding of its origin.
Analysis of the Pioneer Venus Large Probe Neutral Mass Spectrometer Data Yields New Insights into the Composition of Venus’ Atmosphere
We present a new analysis of mass spectral data obtained by the Pioneer Venus (PV) Large Probe Neutral Mass Spectrometer (LNMS). To analyze the LNMS data, we constructed an analytical model that accounts for spectrometer performance at each altitude, provides CO2 abundances in units of density (kg/m3), and retains the resolving power of the LNMS through use of a targeted data-fitting routine. Our results provide new insights into the composition of Venus’ atmosphere and show that densities for CO2 increase towards the surface, which is suggestive of surface outgassing. Additionally, the data reveal partial obstructions of the LNMS inlet at <17 km, which is an likely important consideration for future missions. Re-analysis of the LNMS data may assist in revealing the past, present and/or future habitability of Venus’ clouds.
Preliminary results from the Pioneer 6 magnetic field experiment.
Interplanetary magnetic field measurements using flux gate magnetometer sensor mounted on Pioneer VI space probe, noting various graphs
Pioneer VI observations of the solar flare particle event of 7 July, 1966.
Time dependency, anisotropy degree and spectral composition of cosmic radiation generated during July 1966 solar flares as observed by Pioneer VI
Pioneer C launch
Prelaunch news release on Pioneer C spacecraft mission objectives and specifications
Interplanetary Electron Content Measured Between Earth and the Pioneer 6 and 7 Spacecraft Using Radio Propagation Effects
Electron number density, structure, and time variability of interplanetary media determined by radio propagation effects on Pioneer 6 and 7 spacecraft to earth communications
Feasibility study for conducting biological experiments aboard a Pioneer spacecraft
Engineering feasibility of biological experiments aboard Pioneer space probes
Pioneer 6 orientation control system design survey. NASA/ERC design criteria program, guidance and control
Pioneer 6 space probe spin stabilized orientation control system design survey
Solar weather monitoring - Pioneer project.
Solar environment changes effect on space weather monitoring, noting Pioneer 6 and 7 space probes
Pioneer's solar-cell array.
Solar array as primary electrical power source of Pioneer deep space probes, comparing performance data with test and design data