ar X iv : g r - qc / 0 40 20 20 v 1 4 F eb 2 00 4 Measuring random force noise for LISA aboard the LISA Pathfinder mission
نویسنده
چکیده
The LTP (LISA Testflight Package), to be flown aboard the ESA / NASA LISA Pathfinder mission, aims to demonstrate drag-free control for LISA test masses with acceleration noise below 30 fm /s/ √ Hz from 1-30 mHz. This paper describes the LTP measurement of random, position independent forces acting on the test masses. In addition to putting an overall upper limit for all source of random force noise, LTP will measure the conversion of several key disturbances into acceleration noise and thus allow a more detailed characterization of the drag-free performance to be expected for LISA. PACS numbers: 4.80.Nn
منابع مشابه
ar X iv : g r - qc / 0 40 20 20 v 1 4 F eb 2 00 4 Measuring random force noise for LISA aboard the LISA
The LTP (LISA Testflight Package), to be flown aboard the ESA / NASA LISA Pathfinder mission, aims to demonstrate drag-free control for LISA test masses with acceleration noise below 30 fm /s/ √ Hz from 1-30 mHz. This paper describes the LTP measurement of random, position independent forces acting on the test masses. In addition to putting an overall upper limit for all source of random force ...
متن کاملar X iv : g r - qc / 0 70 20 53 v 1 8 F eb 2 00 7 High Sensitivity Torsion Balance Tests for LISA Proof Mass Modeling
We have built a highly sensitive torsion balance to investigate small forces between closely spaced gold coated surfaces. Such forces will occur between the LISA proof mass and its housing. These forces are not well understood and experimental investigations are imperative. We describe our torsion balance and present the noise of the system. A significant contribution to the LISA noise budget a...
متن کاملar X iv : g r - qc / 0 41 10 71 v 1 1 5 N ov 2 00 4 Mission design for LISA Pathfinder
Here we describe the mission design for SMART-2/LISA Pathfinder. The best trade-off between the requirements of a low-disturbance environment and communications distance is found to be a free-insertion Lissajous orbit around the first co-linear Lagrange point of the Sun-Earth system (L 1), 1.5 × 10 6 km from Earth. In order to transfer SMART-2/LISA Pathfinder from a low Earth orbit, where it wi...
متن کاملar X iv : g r - qc / 0 40 90 10 v 2 4 D ec 2 00 4 Confusion Noise from LISA Capture Sources
Leor Barack and Curt Cutler Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Brownsville, Texas 78520 Department of Mathematics, University of Southampton, Southampton, SO17 1BJ, United Kingdom Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, D-14476 Golm bei Potsdam, Germany (December 4, 2...
متن کاملar X iv : g r - qc / 0 31 01 19 v 1 2 8 O ct 2 00 3 Upper limits on stray force noise for
We have developed a torsion pendulum facility for LISA gravitational reference sensor ground testing that allows us to put significant upper limits on residual stray forces exerted by LISA-like position sensors on a representative test mass and to characterize specific sources of disturbances for LISA. We present here the details of the facility, the experimental procedures used to maximize its...
متن کامل