Estimation of the Magnetic Noise Contribution to LISA Pathfinder Differential Acceleration

  1. Diaz-Aguilo, M. 1
  2. García-Berro, E. 1
  3. Lobo, A. 2
  4. Mateos, I. 2
  5. Gibert, F. 2
  6. Nofrarias, M. 2
  1. 1 Universitat Politecnica de Catalunya / UPC - IEEC
  2. 2 Consejo Superior de Investigaciones Científicas
    info

    Consejo Superior de Investigaciones Científicas

    Madrid, España

    ROR https://ror.org/02gfc7t72

Actas:
9th LISA Symposium, Paris

ISBN: 978-1-58381-816-9

Año de publicación: 2013

Páginas: 257-258

Tipo: Aportación congreso

GOOGLE SCHOLAR lock_openAcceso abierto editor

Resumen

The payload of LISA Pathfinder (LPF) is the LISA Technology Package (LTP), which is designed to measure relative accelerations between two test masses in nominal free fall placed in a single spacecraft. The differential acceleration reading will be perturbed by disturbances such as thermal fluctuations or magnetic effects. The Magnetic Diagnostics System is one of its modules and it will perform two main tasks: (1) estimate the magnetic properties of the test masses, i.e., their remanent magnetic moment and susceptibility, and (2) infer the magnetic field and its gradient at the location of the test masses. The present paper describes the first task and how an estimation accuracy of 1% relative error is attained.