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SwRI Instruments Chosen by NASA

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SAN ANTONIO, July 28 -- Two science instruments to be developed by Southwest Research Institute (SwRI) are part of a proposal selected by NASA as a candidate for the next mission in the agency's New Frontiers Program.
NASA has selected two mission proposals for further study: to orbit Jupiter from pole to pole for the first time to conduct an in-depth study of the giant planet, and to drop robotic landers into a crater at the south pole of the Moon and return samples to Earth.

The space telescope imaging spectrograph on the Hubble Space Telescope took this image of Jupiter's aurora. The Alice instrument on the proposed Juno mission will make images at many different ultraviolet wavelengths from directly above the planet's north and south poles, at about the same resolution. (Photo: NASA/STSci)
   The Southwest Research Institute instruments, JADE (Jovian auroral distributions experiment) and Alice, are part of the proposed "Juno" mission to orbit Jupiter. JADE is designed to measure the auroral electron and ion populations along the planet's magnetic field lines and determine what particle populations create the Jovian aurora. The Alice instrument is designed to image ultraviolet emissions from the Jovian aurora, which will allow space scientists to relate these auroral observations with JADE observations of the particle populations that create them. Alice is similar to instruments of the same name flying on the European Space Agency's Rosetta comet orbiter and scheduled for flight on NASA's New Horizons mission to Pluto.

"The Juno mission will provide the critical information needed to understand how the solar system's largest planet, Jupiter, formed several billion years ago and how it interacts with the solar wind even today," said David J. McComas, senior executive director of the SwRI Space Science and Engineering Division. "The JADE experiment allows us to make the first direct measurements of the particles that create Jupiter's stunning auroral displays."

The Alice instrument on Juno will provide Hubble-like images of Jupiter's powerful and dynamic aurora, but from the much better vantage points of directly above the north and south poles, said G. Randall Gladstone, an Institute scientist at SwRI who serves as Alice principal investigator.

The Juno team proposes using a highly instrumented spacecraft placed in a polar orbit around Jupiter to investigate the existence of an ice-rock core, determine the global water and ammonia abundances in Jupiter's atmosphere, study convection and deep wind profiles in the atmosphere, investigate the origin of the jovian magnetic field and explore the polar magnetosphere. Scott Bolton of the Jet Propulsion Laboratory leads the overall investigation.

The other proposal selected by NASA for further study is "Moonrise: Lunar South Pole -- Aitken Basin Sample Return Mission," led by Michael Duke of the Colorado School of Mines. This team proposes to land two identical landers on the surface near the Moon's south pole and return to Earth approximately five pounds of lunar materials from a region of the Moon's surface believed to harbor materials from its mantle.

Each proposal team will receive up to $1.2 million to conduct a seven-month feasibility study focused on cost, management and technical plans. NASA expects to select one of the mission proposals for full development in May 2005 as the second New Frontiers mission, for a June 2009 launch. The first mission selected by NASA in the New Frontiers Program is New Horizons, which will examine the Pluto-Charon system in 2014 and later target a Kuiper belt object. SwRI manages the New Horizons science investigation for NASA. The spacecraft is currently under construction and is scheduled for a January 2006 launch.

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Jul 2004
ALICEConsumerenergyJadeJovian auroral distributions experimentNASANew FrontiersNews & Featuresrobotic landersSouthwest Research InstituteSwRI

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