In-flight testing of the injection of the LISA Pathfinder test mass into a geodesic

Autor: D. Vignotto, Oliver Jennrich, Jacob Slutsky, Valerio Ferroni, A. Zambotti, D. Hoyland, Pierre Binétruy, Michele Armano, I. Harrison, A. Cesarini, G. Russano, M. Freschi, Gerhard Heinzel, N. Meshksar, Christian J. Killow, Luigi Ferraioli, Antonella Cavalleri, R. Giusteri, Peter Zweifel, Tamara Sumner, J. Grzymisch, Daniele Bortoluzzi, L. Mendes, Catia Grimani, H. Ward, S. Vitale, L. Liu, E. Castelli, J. Martino, Miquel Nofrarías, B. Kaune, Daniele Vetrugno, M. de Deus Silva, A. Wittchen, Mauro Hueller, L. Wissel, L. Martin-Polo, J. A. Lobo, S. Paczkowski, Nikolaos Karnesis, Michael Perreur-Lloyd, D. I. Robertson, G. Dixon, M.-S. Hartig, N. Korsakova, Domenico Giardini, Heather Audley, C. Zanoni, Davor Mance, Martin Hewitson, José F. F. Mendes, D. Texier, Ph. Jetzer, F. Rivas, J. P. López-Zaragoza, Ferran Gibert, P. Pivato, J. Baird, Karsten Danzmann, Antoine Petiteau, Paul McNamara, Eric Plagnol, V. Martín, Carlos F. Sopuerta, Gudrun Wanner, Juan Ramos-Castro, W. J. Weber, H. Inchauspe, Ingo Diepholz, E. D. Fitzsimons, Peter Wass, Rita Dolesi, A. M. Cruise, J. Reiche, Lluis Gesa, R. Maarschalkerweerd, F. Martin-Porqueras, Daniel Hollington, M. Born, James Ira Thorpe
Přispěvatelé: Université Paris Diderot, Sorbonne Université, German Centre for Air and Space Travel, Federal Ministry for Economics Affairs and Energy (Germany), Istituto Nazionale di Fisica Nucleare, Ministerio de Economía y Competitividad (España), Consejo Superior de Investigaciones Científicas (España), UK Space Agency, University of Glasgow, Swiss National Science Foundation, University of Birmingham, National Aeronautics and Space Administration (US), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de la Côte d'Azur (OCA), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Rok vydání: 2021
Předmět:
velocity
Atmospheric Science
experimental methods
detector: satellite
010504 meteorology & atmospheric sciences
Computer science
Mission critical
Aerospace Engineering
Residual
01 natural sciences
7. Clean energy
LISA Pathfinder
Acceleration
Impulse measurement
Space mechanism in-flight testing
0103 physical sciences
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
force: electrostatic
noise: acceleration
Aerospace engineering
capture
010303 astronomy & astrophysics
0105 earth and related environmental sciences
Injection into geodesic motion
LISA
mass: injection
Payload
business.industry
Gravitational wave
gravitational radiation
Astronomy and Astrophysics
gravitational radiation detector
Telecommand
experimental equipment
Geophysics
Pathfinder
gravitation
Space and Planetary Science
trajectory
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
Trajectory
General Earth and Planetary Sciences
business
geodesic
experimental results
LISA pathfinder
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
Adv.Space Res.
Adv.Space Res., 2021, 67 (1), pp.504-520. ⟨10.1016/j.asr.2020.09.009⟩
Advances in Space Research
ISSN: 0273-1177
2010-1570
DOI: 10.1016/j.asr.2020.09.009
Popis: LISA Pathfinder is a technology demonstrator space mission, aimed at testing key technologies for detecting gravitational waves in space. The mission is the precursor of LISA, the first space gravitational waves observatory, whose launch is scheduled for 2034. The LISA Pathfinder scientific payload includes two gravitational reference sensors (GRSs), each one containing a test mass (TM), which is the sensing body of the experiment. A mission critical task is to set each TM into a pure geodesic motion, i.e. guaranteeing an extremely low acceleration noise in the sub-Hertz frequency bandwidth. The grabbing positioning and release mechanism (GPRM), responsible for the injection of the TM into a geodesic trajectory, was widely tested on ground, with the limitations imposed by the 1-g environment. The experiments showed that the mechanism, working in its nominal conditions, is capable of releasing the TM into free-fall fulfilling the very strict constraint imposed on the TM residual velocity, in order to allow its capture on behalf of the electrostatic actuation. However, the first in-flight releases produced unexpected residual velocity components, for both the TMs. Moreover, all the residual velocity components were greater than maximum value set by the requirements. The main suspect is that unexpected contacts took place between the TM and the surroundings bodies. As a consequence, ad hoc manual release procedures had to be adopted for the few following injections performed during the nominal mission. These procedures still resulted in non compliant TM states which were captured only after impacts. However, such procedures seem not practicable for LISA, both for the limited repeatability of the system and for the unmanageable time lag of the telemetry/telecommand signals (about 4400 s). For this reason, at the end of the mission, the GPRM was deeply tested in-flight, performing a large number of releases, according to different strategies. The tests were carried out in order to understand the unexpected dynamics and limit its effects on the final injection. Some risk mitigation maneuvers have been tested aimed at minimizing the vibration of the system at the release and improving the alignment between the mechanism and the TM. However, no overall optimal release strategy to be implemented in LISA could be found, because the two GPRMs behaved differently.
This work has been made possible by the LISA Pathfinder mission, which is part of the space-science programme of the European Space Agency.The French contribution has been supported by the CNES (Accord Specific de projet CNES 1316634/CNRS 103747), the CNRS, the Observatoire de Paris and the University Paris-Diderot.E. Plagnol and H. Inchauspé would also like to acknowledge the financial support of the UnivEarthS Labex program at Sorbonne Paris Cité (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02).The Albert-Einstein-Institut acknowledges the support of the German Space Agency, DLR. The work is supported by the Federal Ministry for Economic Affairs and Energy based on a resolution of the German Bundestag (FKZ 50OQ0501 and FKZ 50OQ1601).The Italian contribution has been supported by Agenzia Spaziale Italiana and Istituto Nazionale di Fisica Nucleare.The Spanish contribution has been supported by contracts AYA2010-15709 (MICINN), ESP2013-47637-P, and ESP2015-67234-P (MINECO).M. Nofrarias acknowledges support from Fundacion General CSIC (Programa ComFuturo).F. Rivas acknowledges an FPI contract (MINECO). The Swiss contribution acknowledges the support of the Swiss Space Office (SSO) via the PRODEX Programme of ESA. L. Ferraioli is supported by the Swiss National Science Foundation.The UK groups wish to acknowledge support from the United Kingdom Space Agency (UKSA), the University of Glasgow, the University of Birmingham,Imperial College, and the Scottish Universities Physics Alliance (SUPA). J. I. Thorpe and J. Slutsky acknowledge the support of the US National Aeronautics and Space Administration (NASA).
Databáze: OpenAIRE
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