Modified gradiometer technique applied to Double Star (TC-1) |
| |
Authors: | E Georgescu HU Auster T Takada J Gloag H Eichelberger K-H Fornaçon P Brown CM Carr TL Zhang |
| |
Institution: | 1. MPI for Solar System Research (MPS), Max-Planck-Str. 2, D-37191 Katlenburg-Lindau, Germany;2. Institute for Geology and Extraterrestrial Physics, Technical University Braunschweig, D-38106 Braunschweig, Germany;3. Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria;4. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 229-8510, Japan;5. The Blackett Laboratory, Imperial College, London SW7 2BW, UK |
| |
Abstract: | On TC-1 (Tan Ce 1), the equatorial spacecraft of the Double Star mission, a strong spin-synchronized magnetic interference from the solar panels was observed. In-flight correction techniques for spinning spacecraft that are based on minimizing spin tones in the spin-aligned component and in the magnitude of the ambient magnetic field are therefore not possible in this case. However, due to the fortunate situation that the spacecraft carries two flux-gate magnetometers on the same boom (at 0.5 m distance from each other), the spacecraft field effects could be removed from the spin-averaged data to achieve 0.2 nT relative accuracy, by using a gradiometer technique. Methodology and results are presented. The obtained accuracy allows the use of the data in multi-spacecraft studies together with the Cluster satellites. |
| |
Keywords: | Dual-magnetometer method Double Star mission Magnetometer calibration Solar-terrestrial physics |
本文献已被 ScienceDirect 等数据库收录! |
|