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MICRO-Satellite a traînee Compensee pour l'Observation du Principe d'Equivalence
CHARACTERISTICS 
Micro-satellite of the CNES Myriade series equiped with field emission electric thrusters.
Instruments:
Two differential accelerometers.
Equivalence Principle Test
Sun synchronous polar orbit at 700 km
Lifetime 2 years

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The Project main steps

Timeline

MICROSCOPE (MICRO-Satellite à traînée Compensée pour l'Observation du Principe d'Equivalence) is a microsatellite of the CNES Myriade series. It is dedicated to a fundamental physics experiment.

The objectives:

  • The main scientific objective is the test of the Equivalence Principle with an accuracy of one hundred times better than the one obtained with experiments realised on Earth.
     
  • The secondary objectives are:
    • The realisation of an attitude control and drag free system using cold gas micro thrusters.
    • The measurement of the accelerations on board the satellite with an accuracy better than 10-12 ms-2.
    The secondary objectives constitute a preliminary condition to the realisation of the measurement of the Equivalence Principle.


Latest update 27/06/2014
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NEWS
03/2014
Satellite Critical Definition Review (CDR) and CGPS and performances key point
 
10/2013
T-SAGE instrument Critical Definition Review (CDR)
 
11/2012
System interfaces review
 
12-2011
Decision to realise the project (phases C, D, E1) by CNES' Conseil d'Administration
 
11-2011
System PDR complement and Mission performances key point
 
04-2011
Satellite PDR complement with cold gas propulsion
 
06-2008
T-SAGE instrument conception Key Point
The project has been authorized to go on with T-SAGE qualification in phase C2/D
 
05-2008
Technological consolidation
The Microscope project Steering Committee has authorised the project to start a new preliminary conception phase (phase B) with cold gas micro thrusters instead of FEEPs
 
Podcast Ciel&Espace
Pharao and Microscope: time and gravitation put to the test (in french)