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Proceedings Paper

The LOFT ground segment
Author(s): E. Bozzo; A. Antonelli; A. Argan; D. Barret; Pavel Binko; S. Brandt; E. Cavazzuti; T. Courvoisier; J. W. den Herder; M. Feroci; C. Ferrigno; P. Giommi; D. Götz; L. Guy; M. Hernanz; J. J. M. in't Zand; D. Klochkov; Erik Kuulkers; C. Motch; D. Lumb; A. Papitto; Carlotta Pittori; R. Rohlfs; A. Santangelo; C. Schmid; A. D. Schwope; P. J. Smith; N. A. Webb; J. Wilms; S. Zane
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Paper Abstract

LOFT, the Large Observatory For X-ray Timing, was one of the ESA M3 mission candidates that completed their assessment phase at the end of 2013. LOFT is equipped with two instruments, the Large Area Detector (LAD) and the Wide Field Monitor (WFM). The LAD performs pointed observations of several targets per orbit (~90 minutes), providing roughly ~80 GB of proprietary data per day (the proprietary period will be 12 months). The WFM continuously monitors about 1/3 of the sky at a time and provides data for about ~100 sources a day, resulting in a total of ~20 GB of additional telemetry. The LOFT Burst alert System additionally identifies on-board bright impulsive events (e.g., Gamma-ray Bursts, GRBs) and broadcasts the corresponding position and trigger time to the ground using a dedicated system of ~15 VHF receivers. All WFM data are planned to be made public immediately. In this contribution we summarize the planned organization of the LOFT ground segment (GS), as established in the mission Yellow Book1. We describe the expected GS contributions from ESA and the LOFT consortium. A review is provided of the planned LOFT data products and the details of the data flow, archiving and distribution. Despite LOFT was not selected for launch within the M3 call, its long assessment phase ( >2 years) led to a very solid mission design and an efficient planning of its ground operations.

Paper Details

Date Published: 28 July 2014
PDF: 7 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91446A (28 July 2014); doi: 10.1117/12.2054728
Show Author Affiliations
E. Bozzo, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
A. Antonelli, ASI Science Data Ctr. (Italy)
A. Argan, INAF - IASF Roma (Italy)
D. Barret, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Pavel Binko, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
S. Brandt, DTU Space (Denmark)
E. Cavazzuti, ASI Science Data Ctr. (Italy)
T. Courvoisier, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
J. W. den Herder, SRON Netherlands Institute for Space Research (Netherlands)
M. Feroci, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
INFN (Italy)
C. Ferrigno, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
P. Giommi, ASI Science Data Ctr. (Italy)
D. Götz, CEA-IRFU (France)
L. Guy, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
M. Hernanz, Institut d'Estudis Espacials de Catalunya, CSIC (Spain)
J. J. M. in't Zand, SRON Netherlands Institute for Space Research (Netherlands)
D. Klochkov, Institut für Astronomie und Astrophysik Tübingen, Eberhard Karls Univ. Tübingen (Germany)
Erik Kuulkers, European Space Astronomy Ctr. (Spain)
C. Motch, Observatoire Astronomique de Strasbourg (France)
D. Lumb, European Space Research and Technology Ctr. (Netherlands)
A. Papitto, Institut d'Estudis Espacials de Catalunya, CSIC (Spain)
Carlotta Pittori, ASI Science Data Ctr. (Italy)
R. Rohlfs, ISDC Data Ctr. for Astrophysics, Univ. de Genève (Switzerland)
A. Santangelo, Institut für Astronomie und Astrophysik Tübingen, Eberhard Karls Univ. Tübingen (Germany)
C. Schmid, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
A. D. Schwope, Leibniz-Institut für Astrophysik Potsdam (Germany)
P. J. Smith, Mullard Space Science Lab. (United Kingdom)
N. A. Webb, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
J. Wilms, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
S. Zane, Mullard Space Science Lab., Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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