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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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Plasmapause position measurements by ion mass spectrometers and broadband VLF receivers on OGO 1 and OGO 3 and by broadband recordings at Antarctica
VLF data from OGO 2 and OGO 4 on propagation, wave-particle interactions, and noise in ionosphere and magnetosphere
VLF experiments flown on OGO 1 /A17/ and OGO 3 /B17/ including orbits and attitudes of both satellites
Injun 5 Poynting flux measurements of VLF hiss emissions at low altitudes
Magnetospheric observations of whistler mode emissions by OGO 1 satellite over VLF and LF ranges
Ionospheric electric fields variations in ELF-VLF, confirming OV-1 satellite measurements with OGO 6 data
Auroral zone VLF hiss and low energy particle observations with Injun 5 satellite
Space station plasma physics experiments, investigating electron and ion wakes, resonance, VLF electromagnetic energy propagation and magnetospheric phenomena
VLF electric field data in interplanetary medium from Pioneer 8 space probe observation
VLF Poynting flux measurement technique on Injun 5 satellite using one electric and one magnetic antenna, discussing magnetic orientation errors effects
VLF hiss directions from Injun 5 Poynting flux observations, proposing propagation across plasmapause boundary
Whistlers with harmonic bands caused by multiple stroke lightning, using Injun 5 VLF data
Color frequency-time spectrograms of VLF electric and magnetic field Poynting flux data from Injun 5 satellite
Pioneer 9 interplanetary observations, presenting deep space data for solar rotations and radial gradient in VLF electric field behavior
VLF plasma oscillations in spherical magnetized cold cathode DC discharge, determining frequency relationship to current/voltage, gas pressure, magnetic field strength and cathode diameter
A short history is given of the development of dual VLF time transmission techniques. The theory of time recovery from the relative phase of the dual frequency transmission is presented. The transmission and receiving requirements for cycle identification and cycle ambiguity resolution are described. Finally, an experiment to test the capability of time transmission of the OMEGA system is proposed
A technique for analyzing the polarization properties of plane waves is developed which offers a number of advantages over methods currently used in the analysis of both ground and satellite observations of waves. This technique reduces the computations required to find the wave normal vector, is less sensitive to common noise sources, and is amenable to analog implementation. This technique is applied specifically to the analysis of a proton whistler, but may also be used in most studies of ULF, ELF, and VLF magnetic wave phenomena.
Results of plasmapause measurements made onboard S cubed A (explorer 45) satellite are presented. Data cover model calculations made to explain the observed probe potential behavior, comparison of satellite data with VLF data to establish that certain effects seen are interpretable as the plasmapause, and plasmapause behavior during the December 17, 1971 magnetic storm.