Review of Science Requirements for the Terrestrial Planet Finder Letter Report (2004) / Chapter Skim
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Letter Report
Letter Report
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The Space Studies Board and the Board on Physics and Astronomy, in response to your requests, developed the following charge: This panel will review NASA's current scientific objectives for the Terrestrial Planet Finder (TPF) mission and prepare a brief letter report conducting an independent scientific assessment as to whether these objectives remain consistent with the priority given to the mission by the Astronomy and Astrophysics Survey Committee.
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. The 2000 decadal survey report ranked the Terrestrial Planet Finder third in its list of major NASA missions behind the James Webb Space Telescope (then called the Next Generation Space Telescope)
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Since the 2000 decadal survey the TPF project has made progress in technology development and scientific definition of the mission. NASA reported that shortly after the survey, a number of detailed studies of TPF system architectures showed that an extremely precise coronagraphic imaging telescope could achieve somethough not allof the science goals outlined originally for the interferometer approach.
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An example involves extremely deep observations, significantly more sensitive than the Hubble Space Telescope ultradeep field, of the annular region around the stars targeted for the planet search. TPF-C might have additional astrophysics reach, but the TPF project has not allowed broader astrophysics goals to drive the design or the cost of the TPF-C optical telescope assembly.
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Neither the 2000 decadal survey nor any prior NRC reports had considered the added value for terrestrial planet finding of having an optical mission such as TPF-C as a complement to TPF-I. The panel finds that the current scientific goals of the TPF project are consistent with those envisioned in the 2000 decadal survey, Astronomy and Astrophysics in the New Millennium.
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Freedman, Chair Panel to Review the Science Requirements for the Terrestrial Planet Finder Attachment: Letter of Request, January 29, 2004 Follow-up Letter, April 15, 2004 Panel Roster Panel Meeting Agenda, May 18, 2004 Acknowledgment of Reviewers cc: Alphonso V Diaz, Associate Administrator, Science Mission Directorate Lennard A
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Attachment LETTER OF REQUEST, JANUARY 29, 2004 7
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PANEL ROSTER Panel to Review the Science Requirements for the Terrestrial Planet Finder WENDY L FREEDMAN, Observatories of the Carnegie Institution, Chair CHARLES ALCOCK, University of Pennsylvania LARS BILDSTEN, University of California, Santa Barbara ROGER D
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PANEL MEETING AGENDA MAY 18, 2004 Closed Session 8:15 am Convene Discussion Open Session 9:00 am TPF project Charles Beichman, JPL; Zlatan Tsvetanov, NASA; Dan Coulter, NASA 10:15 am TPF science: Science Working Group Marc Kuchner, Princeton University and previous reports 11:00 am Break 11:15 am TPF discussion Closed Session 1:15 pm Discussion and letter report writing 4:00 pm General discussion 5:00 pm Adjourn 11
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ACKNOWLEDGMENT OF REVIEWERS This report has been reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise, in accordance with procedures approved by the NRC's Report Review Committee. The purpose of this independent review is to provide candid and critical comments that will assist the institution in making its published report as sound as possible and to ensure that the report meets institutional standards for objectivity, evidence, and responsiveness to the study charge.
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