Abstract
The average amplitude of the 27-day variation of the galactic cosmic ray anisotropy calculated based on the neutron monitors experimental data is larger in the qA > 0 period than in the qA < 0 period of solar magnetic cycle. The amplitudes of the 27-day variation of the galactic cosmic rays anisotropy do not depend on the tilt angles of the heliospheric neutral sheet for different the qA > 0 and the qA < 0 periods of solar magnetic cycle. A good correlation has been revealed between the changes of the amplitudes of the 27-day variations of the galactic cosmic ray anisotropy and intensity versus the qA > 0 and the qA < 0 periods of solar magnetic cycle.
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