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The Multiview Observatory for Solar Terrestrial Science (MOST)
We report on a study of the Multiview Observatory for Solar Terrestrial
Science (MOST) mission that will provide comprehensive imagery and time series
data needed to understand the magnetic connection between the solar interior
and the solar atmosphere/inner heliosphere. MOST will build upon the successes
of SOHO and STEREO missions with new views of the Sun and enhanced instrument
capabilities. This article is based on a study conducted at NASA Goddard Space
Flight Center that determined the required instrument refinement, spacecraft
accommodation, launch configuration, and flight dynamics for mission success.
MOST is envisioned as the next generation great observatory positioned to
obtain three-dimensional information of large-scale heliospheric structures
such as coronal mass ejections, stream interaction regions, and the solar wind
itself. The MOST mission consists of 2 pairs of spacecraft located in the
vicinity of Sun-Earth Lagrange points L4 (MOST1, MOST3) and L5 (MOST2 and
MOST4). The spacecraft stationed at L4 (MOST1) and L5 (MOST2) will each carry
seven remote-sensing and three in-situ instrument suites. MOST will also carry
a novel radio package known as the Faraday Effect Tracker of Coronal and
Heliospheric structures (FETCH). FETCH will have polarized radio transmitters
and receivers on all four spacecraft to measure the magnetic content of solar
wind structures propagating from the Sun to Earth using the Faraday rotation
technique. The MOST mission will be able to sample the magnetized plasma
throughout the Sun-Earth connected space during the mission lifetime over a
solar cycle.Comment: 42 pages, 19 figures, 8 tables, to appear in J. Atmospheric and Solar
Terrestrial Physic