Christian Fischer, from the University of
Stuttgart's Institute for Space Systems, works on the Field-Imaging Far-Infrared
Line Spectrometer, or FIFI-LS, in the NASA SOFIA science laboratory prior to
testing in preparation for the first observing flights in spring 2014.
Image Credit: NASA / Tom Tschida
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The Field-Imaging Far-Infrared Line Spectrometer (FIFI-LS) instrument was
shipped from Germany to the Dryden Aircraft Operations Facility in Palmdale,
Calif. In November 2013. After the instrument arrived at the Dryden facility,
several months of preparations began for its operation aboard SOFIA, NASA's
Stratospheric Observatory for Infrared Astronomy.
The first science observing flights with FIFI-LS are currently scheduled for
March 2014.
Being a so-called 3-D spectrometer, FIFI-LS uses SOFIA’s valuable observing
time in a quite efficient way by obtaining images and spectroscopic information
simultaneously using a rather complicated mirror system. Only the huge amount of
information gathered by FIFI-LS may allow astronomers to identify and understand
particular physical processes in the universe. Working at a wavelength range
between 45 and 210 microns, the instrument can investigate the interstellar
medium and star formation regions in our Milky Way as well as in other nearby
galaxies.
Christian Fischer checks the FIFI-LS that is cooled
by liquid nitrogen and helium during testing. The University of Stuttgart 3D
spectrometer will investigate the interstellar medium and star formation regions
of the Milky Way when installed in the SOFIA flying observatory.
Image Credit:
NASA / Tom Tschida
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FIFI-LS was originally developed by the Max-Planck-Institut Für
Extraterrestrische Physik in Garching, Germany under the leadership of Albrecht
Poglitsch, but was transferred to Alfred Krabbe’s group at the Institute for
Space Systems of the University of Stuttgart in Germany in September. During the
past few years, project manager Sebastian Colditz and his team finalized,
integrated and aligned the last optical components in the SOFIA laboratory
facility of the Baden-Württemberg Space Center before the completed instrument
was transformed into flight-certified hardware. In the most extreme case,
FIFI-LS might have to endure nine times the force of gravity on Earth’s surface;
hence NASA has very high flight safety requirements that must be fulfilled.
FIFI-LS was cooled seven times by liquid nitrogen and helium down to a
temperature of minus 271°C to test all components under operating
conditions.
During the last two weeks of October, Colditz and his colleagues were quite
busy -- some last plugs had to be brazed, screws had to be tightened again, and
finally the instrument and some laboratory equipment had to be stored safely for
transportation. On Oct. 29 the so-called “Pre-shipment Review Board“ led by the
German Aerospace Center (DLR) declared: "All-clear! FIFI-LS is ready for
shipment to California." All in all, about two tons of equipment was shipped to
the Dryden facility in Palmdale, Calif., arriving the last week of November.
Principal investigator Alfred Krabbe and his colleagues will be busy
conducting final tests on the ground as well as on SOFIA to make FIFI-LS ready
for its first flight on board the airborne observatory. The first commissioning
flights for FIFI-LS on board SOFIA are currently scheduled for February 2014
when the instrument will record its “first light”.
SOFIA is a joint project of NASA and the DLR. The aircraft is based at the
Dryden Aircraft Operations Facility in Palmdale, Calif., a satellite facility of
NASA's Dryden Flight Research Center, which manages the SOFIA program. NASA's
Ames Research Center at Moffett Field, Calif., manages SOFIA science and mission
operations in cooperation with the Universities Space Research Association
(USRA), headquartered in Columbia, Md., and the German SOFIA Institute (DSI) at
the University of Stuttgart.
For more on the Field-Imaging Far-Infrared Line Spectrometer (FIFI-LS) for
the SOFIA observatory, visit:
NASA Observatory Selects Educator Teams for 2014 Science
Flights
NASA's Stratospheric Observatory for Infrared Astronomy, or SOFIA, will
become a flying classroom for teachers during research flights in the next few
months.
Twelve two-person teams have been selected for SOFIA's Airborne Astronomy
Ambassadors program, representing educators from 10 states. Each will be paired
with a professional astronomer to observe first-hand how airborne infrared
astronomy is conducted. After their flight opportunities, Airborne Astronomy
Ambassadors will take what they learn back to their classrooms and into their
communities to promote science literacy.
SOFIA is a highly modified Boeing 747SP jetliner fitted with a 100-inch
(2.5-meter) effective diameter telescope. The aircraft flies at altitudes
between 39,000 and 45,000 feet (12-14 kilometers), above the water vapor in the
Earth's atmosphere, and collects data in the infrared spectrum.
"SOFIA offers educator teams unprecedented access to infrared astronomers and
the unique capabilities of an airborne observatory," said John Gagosian, SOFIA
program executive at NASA Headquarters in Washington. "Previous Airborne
Astronomy Ambassadors teams have witnessed SOFIA's world-class astronomical
science and have used this experience in hundreds of science, technology,
engineering and math teaching opportunities throughout the United States."
SOFIA's Airborne Astronomy Ambassadors for 2014 are:
-- Megan Tucker and Dan Molik, The Palmdale Aerospace Academy, Palmdale, Calif.
-- Barbel Sepulveda, Lincoln High School, and Chris Rauschenfels, Sierra Middle School, Stockton, Calif.
-- Nathan Mahoney, Pine Crest School, Deerfield Beach, Fla. and Héllen Tavora, South Florida Amateur Astronomers Association and Fox Astronomical Observatory, Fort Lauderdale, Fla.
-- Marcella Linahan, Carmel Catholic High School, Mundelein, Ill., and Lynne Zielinski National Space Society, Long Grove, Ill.
-- Judi Little and LeeAnn Vaughan, Burke High School, Omaha, Neb.
-- Margaret Holzer, Chatham High School, Somerset, N.J., and Theresa Roelofsen Moody, New Jersey Astronomy Center at Raritan Valley Community College, High Bridge, N.J.
-- Michael Maccarone and Elizabeth Rosenberger, Avenues: The World School, New York
-- Tom Jenkins, Dayton Regional STEM Center, Enon, Ohio, and Heidi Steinbrink, Oakwood Senior High School, Springfield, Ohio
-- Robert Black, North Medford High School, and Dave Bloomsness, Southern Oregon Skywatchers, Medford, Ore.
-- George Hademenos and Diane Watson, Richardson High School, Richardson, Texas
-- Kim Abegglen and Anna-Melissa Lyons, Hockinson Middle School, Vancouver, Wash.
-- Kathy Gustavson, Nicolet High School, Whitefish Bay, Wisc., and Jean Creighton University of Wisconsin–Madison, Manfred Olson Planetarium, Milwaukee.
-- Megan Tucker and Dan Molik, The Palmdale Aerospace Academy, Palmdale, Calif.
-- Barbel Sepulveda, Lincoln High School, and Chris Rauschenfels, Sierra Middle School, Stockton, Calif.
-- Nathan Mahoney, Pine Crest School, Deerfield Beach, Fla. and Héllen Tavora, South Florida Amateur Astronomers Association and Fox Astronomical Observatory, Fort Lauderdale, Fla.
-- Marcella Linahan, Carmel Catholic High School, Mundelein, Ill., and Lynne Zielinski National Space Society, Long Grove, Ill.
-- Judi Little and LeeAnn Vaughan, Burke High School, Omaha, Neb.
-- Margaret Holzer, Chatham High School, Somerset, N.J., and Theresa Roelofsen Moody, New Jersey Astronomy Center at Raritan Valley Community College, High Bridge, N.J.
-- Michael Maccarone and Elizabeth Rosenberger, Avenues: The World School, New York
-- Tom Jenkins, Dayton Regional STEM Center, Enon, Ohio, and Heidi Steinbrink, Oakwood Senior High School, Springfield, Ohio
-- Robert Black, North Medford High School, and Dave Bloomsness, Southern Oregon Skywatchers, Medford, Ore.
-- George Hademenos and Diane Watson, Richardson High School, Richardson, Texas
-- Kim Abegglen and Anna-Melissa Lyons, Hockinson Middle School, Vancouver, Wash.
-- Kathy Gustavson, Nicolet High School, Whitefish Bay, Wisc., and Jean Creighton University of Wisconsin–Madison, Manfred Olson Planetarium, Milwaukee.
"Educators are selected through a rigorous peer-reviewed process for this
yearly professional development opportunity," said astronomer Dana Backman,
manager of SOFIA's education and public outreach programs at NASA's Ames
Research Center in Moffett Field, Calif. "To date, the Airborne Astronomy
Ambassadors' program has flown 15 teams totaling 31 educators from 17 states,
and we look forward to working with this new cadre of educators as they take
NASA science into their communities."
SOFIA is a joint project of NASA and the German Aerospace Center (DLR). The
aircraft is based at the Dryden Aircraft Operations Facility in Palmdale, Calif.
NASA's Dryden Flight Research Center in Edwards, Calif., manages the program.
Ames manages the SOFIA science and mission operations in cooperation with the
Universities Space Research Association (USRA) in Columbia, Md., and the German
SOFIA Institute (DSI) at the University of Stuttgart.
For more information about SOFIA, visit:
and
For information about SOFIA's science mission and scientific instruments,
visit:
and
NASA
Guillermo Gonzalo Sánchez Achutegui
Inscríbete en el Foro del blog y participa : A Vuelo De Un Quinde - El Foro!
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