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Pickett, J.

Publications and source records attributed to Pickett, J..

11 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS2000

Polar Cap Bondary Layer ELF/VLF Waves

We will demonstrate that these boundary layer waves are continuously present on auroral zone magnetic field lines at all local times. The wave intensities and latitudinal location dependences on interplanetary parameters have been statistically determined and will be discussed.

boundary layer waves geomagnetic↗
NASA NTRS1987

Measurements of plasma density and turbulence near the shuttle orbiter

In August 1985 the University of Iowa's Plasma Diagnostics Package was used in the Spacelab 2 mission to study the plasma environment near the shuttle orbiter. Measurements of the plasma density and the percentage density fluctuations yielded information about the structure of the orbiter's wake. These data appear to be in general agreement with previous shuttle results and with laboratory observations of plasma flow-body interactions.

Tribble, A.↗
NASA NTRS1986

Measurements of plasma parameters in the vicinity of the Space Shuttle

A Langmuir probe flown as part of the Plasma Diagnostics Package aboard the third Space Shuttle flight was used to determine electron densities, temperatures, and plasma potential in the vicinity of the Shuttle Orbiter. Measurements taken both in the cargo bay and 10 m above the cargo bay on the Remote Manipulator System arm are consistent with small satellite and laboratory results, in that reduced densities and elevated temperatures are observed in the Shuttle wake. The primary difference in the Shuttle measurements is one of magnitude; i.e., orders-of-magnitude density decreases and factor-of-five temperature enhancements. Analysis of data taken in (Delta N)/N turbulence can be as high as a few percent, and the most intense turbulence seems to occur near regions with a steep gradient in plasma pressure.

Murphy, G.↗