HEPL hosts a variety of Seminars, Conferences and Meetings throughout the year.

Next HEPL Seminar: Wed 7 December 2005, 4.15 pm
(Refreshments available at 4pm)
Location HEPL Conference Room

Speaker: Emeline Guiu
Office National d’Etudes et de Recherches Aérospatiales (ONERA)

The MICROSCOPE Mission and In-Flight Calibration
Emeline Guiu, Danya Hudson

Recent developments in fundamental physics have renewed interest in disproving the Equivalence Principle. The MICROSCOPE mission will be the first test to capitalize on the advantages of space to achieve an accuracy of 10 -15, more than two orders of magnitude better than current ground based results. It is a joint CNES, ONERA, and Observatoire de la Côte d’Azur mission in the CNES MYRIADE microsatellite program. The principle of the test is to place two masses of different material on precisely the same orbit and measure any difference in the forces required to maintain the common orbit. The test is performed by a differential electrostatic accelerometer containing two concentric cylindrical test masses. Special attention has been paid to the accelerometric environment of the satellite in order to decrease all the disturbing accelerations. MICROSCOPE is the first satellite with a continuous Drag Free and Attitude Control System and thus does not need an orbit control. The in-orbit calibration, necessary to achieve the target precision, is possible thanks to this system. This presentation will include an overview of the mission, a description of the accelerometer development and the in-flight calibration process.

Emeline Guiu, Danya Hudson
Office National d’Etudes et de Recherches Aérospatiales (ONERA)
29 avenue de la Division Leclerc 92322 CHATILLON CEDEX FRANCE
http://www.onera.fr/english.html

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We hope to see you at a HEPL Seminar soon.

Previous HEPL Seminars 2004-5:

Ulrich Schreiber, Forschungseinrichtung Satellitengeodäsie, TU-München
“High Precision Sagnac Interferometry for Applications in Geoscience ”
Thursday, September 8, 2005

Christopher D. Bass, Indiana University / IUCF, “Measurement of the Parity-Odd Neutron Spin Rotation in Liquid-⁴He”
Monday, August 22, 2005

Anne Kinney, Director, Universe Division in the Science Mission Directorate, NASA, "Blue Planets, Black Holes"
Wednesday, 20 July 2005

Dr William Tobin, Department of Physics & Astronomy, University of Canterbury,New Zealand "Foucault's Gyroscope of 1852"
Friday, 8 April 2005

Rex Geveden, NASA Chief Engineer, Independent Technical Authority
Thursday, 7 April 2005

Shooting the Moon: Probing Fundamental Gravity in the Solar System
Tom Murphy, UC San Diego 3 March 2005

The GRACE Mission: Status and Science Results John Ries, Senior Research Scientist at the Center for Space Research at The University of Texas at Austin, 14 February 2005.

Hubble Robotic Servicing - Recent Engineering Development, Bill Reeve
Civil Space Director of Advanced Science Programs, Lockheed Martin, 26 January 2005.

Interferometry for LISA, Daniel Shaddock, PhD, Interferometry Metrology and Optics Group, Jet Propulsion Laboratory, 17 November 2004.

The Large Synoptic Survey Telescope (LSST), Steve Kahn, Deputy Director, Kavli Institute for Particle Astrophysics and Cosmology, 27 October 2004.

HEPL-KIPAC Showcase. 29 September 2004. Agenda