학술논문

MICROSCOPE: systematic errors
Document Type
Working Paper
Source
Class. Quantum Grav. 39 204006 (2022)
Subject
Astrophysics - Instrumentation and Methods for Astrophysics
General Relativity and Quantum Cosmology
Physics - Applied Physics
Physics - Instrumentation and Detectors
Language
Abstract
The MICROSCOPE mission aims to test the Weak Equivalence Principle (WEP) in orbit with an unprecedented precision of 10$^{-15}$ on the E\"otv\"os parameter thanks to electrostatic accelerometers on board a drag-free micro-satellite. The precision of the test is determined by statistical errors, due to the environment and instrument noises, and by systematic errors to which this paper is devoted. Systematic error sources can be divided into three categories: external perturbations, such as the residual atmospheric drag or the gravity gradient at the satellite altitude, perturbations linked to the satellite design, such as thermal or magnetic perturbations, and perturbations from the instrument internal sources. Each systematic error is evaluated or bounded in order to set a reliable upper bound on the WEP parameter estimation uncertainty.
Comment: To be released in CQG MICROSCOPE Special Edition