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MICROSCOPE mission scenario, ground segment and data processing
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DOI：10.1088/1361-6382/ac4b9a.png)
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Abstract
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Testing the weak equivalence principle to a precision of 10(-15) requires a quantity of data that give enough confidence on the final result: ideally, the longer the measurement the better the rejection of the statistical noise. The science sessions had a duration of 120 orbits maximum and were regularly repeated and spaced out to accommodate operational constraints but also in order to repeat the experiment in different conditions and to allow time to calibrate the instrument. Several science sessions were performed over the 2.5 years duration of the experiment. This paper aims to describe how the data have been produced on the basis of a mission scenario and a data flow process, driven by a tradeoff between the science objectives and the operational constraints. The mission was led by the Centre National d'Etudes Spatiales (CNES) which provided the satellite, the launch and the ground operations. The ground segment was distributed between CNES and Office National d'Etudes et de Recherches Aerospatiales (ONERA). CNES provided the raw data through the Centre d'Expertise de Compensation de Trainee (CECT: drag-free expertise centre). The science was led by the Observatoire de la Cote d'Azur (OCA) and ONERA was in charge of the data process. The latter also provided the instrument and the Science Mission Centre of MICROSCOPE (CMSM).
Keywords:
experimental gravitation
equivalence principle
general relativity
micro-satellite
space accelerometers
Journal
IF:
3.7
Papers:
1.3W
Citations:
3.0W
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