Calibrating LISA Pathfinder raw data into femto-g differential accelerometry

11th International LISA Symposium

Vetrugno, Daniele^1,2 ; Karnesis, Nikolaos^2

Dipartimento di Fisica, University of Trento and Trento Institute for Fundamental Physics and Application, INFN, Povo, Trento

38123, Italy^1

Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Universitat Hannover, Hannover

30167, Germany^2

关键词: Accelerometry;    Calibration experiments;    Differential accelerations;    In-flight tests;    LISA Pathfinder;    Local source;    Noise levels;    Spacecraft motion;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/840/1/012002/pdf
DOI  :  10.1088/1742-6596/840/1/012002

来源: IOP

【 摘 要 】

LISA Pathfinder is an in-flight test of the local sources of acceleration noise in LISA. The acceleration noise level in LISA Pathfinder is measured by the residual differential acceleration Δg between the two test masses once the coupling to the spacecraft motion has been removed. The full process from raw data to Δg passes through a series of calibration experiments and different data elaboration procedure which are thoroughly used during the mission and represent the baseline for any other further investigation.