Cosmic ray scintillations in random magnetic fields with non-zero helicity

The cosmic ray scintillation theory is modified for the case of non diagonal IMF correlation tensor. We introduce the term helicity of cosmic ray scintillation. It describes rotation of the cosmic ray distribution function.It is shown that the helicity of the cosmic ray scintillations and the IMF helicity are alike in nonresonant frequency band. The behaviour of the cosmic ray distribution function in resonant frequency band is considered.The algorithm for two-canal spectral analysis based on an autoregressional method is developed. Empirical functions of helicity of the cosmic ray scintillation and of IMF helicity are obtained for the same time intervals.Observational results are found to be in a good agreement with the theory.     

Relative lateration across the Los Angeles basin using a Satellite Laser Ranging System

In January of 1981 the Transportable Laser Ranging System (TLRS) developed for NASA by The University of Texas was used to conduct a four-day test of the relative lateration technique. The test evolved making repeated measurements of six lines over the Los Angeles basin varying in distance from 26 to 84 kilometers. Although the raw times-of-flight to the various targets changed typically by 5 parts in 10⁶, their line ratios varied nearly an order of magnitude less. The test suggests that the TLRS or other pulsed laser ranging systems might be able to economically combine Lageos ranging and long baseline horizontal work to survey large areas for accumulating crustal strain.