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1993-05-03
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PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011
FOR IMMEDIATE RELEASE
NASA's Jet Propulsion Laboratory has established a
project office to develop the second NASA polar orbiting platform
(NPOP-2) of the Earth Observing System (Eos), a major element of
NASA's "Mission to Planet Earth."
Michael J. Sander, manager of the Flight Project
Support Office at JPL and a veteran of spacecraft mission
operations and data system development at JPL and NASA, was named
to head the new project.
Scientists plan to launch NPOP-2 aboard a Titan IV
rocket in 1998, two years after launch of NPOP-1, which is
managed by NASA's Goddard Space Flight Center. The Japanese and
European space agencies have agreed to fly polar orbiting
platforms as a collaborative part of Eos, and space station
Freedom instruments and proposed geosynchronous platforms will
also participate in the Earth mission.
The JPL-managed platform will carry about 10
instruments to observe the surface and atmosphere for a decade or
more, and will have a mass of some 14 tons. It will circle the
Earth about every 100 minutes at an altitude of 700 kilometers
(450 miles), radioing its measurements through the Tracking and
Data Relay Satellite system to data centers on the ground,
according to project manager Sander.
"The amount of science data Eos can deliver isprodigious," said Sander. "The systems to process, display,
distribute, archive and analyze Eos data will be of a scale
unprecedented at NASA. Because of this the Eos data system will
receive major emphasis in the program," he said, "to assure
minimum difficulty for the science users."
The JPL design team will work very closely with
NASA/GSFC, to coordinate platform design as well as mission
design. The platforms will be as similar as the different
science payloads permit, both to save cost and to make operations
and data processing easier.
Eos will be by far the largest and most significant
Earth science project attempted so far. In addition to the JPL
and GSFC space-platform and data-system design work, many
scientists are developing candidate instruments for the missions.
JPL scientists are working on an atmospheric infrared sounder, a
synthetic aperture and an infrared imaging spectrometer for Earth
observation. Many JPL scientists expect to be among the hundreds
of users of the observatory-like Eos facility instruments.
"Though we are principally recognized for our
achievements in exploring the Solar System, JPL has flown Earth
missions before," said John R. Casani, deputy assistant lab
director for flight projects. JPL built the first U.S.
satellite, Explorer 1, managed the Seasat project pioneering
satellite oceanography, and has developed many instruments for
observing Earth's surface and atmosphere. Some of these have
flown in the shuttle, such as the Atmospheric Trace Molecule
Spectroscopy Experiment and the Shuttle Imaging Radar, while
others have flown aboard balloons and NASA aircraft, helping to
study atmospheric trends like the recent ozone depletion and the
greenhouse effect.
The Eos project is supported principally by NASA's
Office of Space Science and Applications, where Alexander J.
Tuyahov is Eos program manager, and Dr. Dixon M. Butler is
program scientist.
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