MULTIPOINT MEASUREMENTS APPROACH TO EVALUATION OF SMALL-SCALE QUASI-HARMONIC STRUCTURES VELOCITY IN THE EARTH'S FORESHOCK. CASE STUDY

摘要

Two points measurements of solar wind ion flux and interplanetary magnetic field obtained by INTERBALL-1 and MAGION-4 spacecraft in the Earth's foreshock on May 25, 1997 was used to estimate the propagation velocity and propagation direction of the small-scale quasi-harmonic structures.