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Proceedings Paper

Onboard science data processing for NGST: algorithms and architectures
Author(s): Luca Scandelli; Arnaldo Bonati; Immacolata Bruno; Patricia A. Caraveo; Koos W. Cornelisse; Ulrich Denskat; Massimiliano Pecora
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Paper Abstract

In the frame of an ESA program, as a potential contribute to NASA-ESA NGST project, this study focuses on the On Board Data Management System, starting from the requirements defined by a European Science Team. The expected amount of data collected in a single day of observation will be about 1600 GBytes, while the downlink capacity is at present in the range of 5 to 40 GBytes/day. Given these figures, on- board data reduction will be mandatory. It should include detector and signal conditioning, non-linearity correction, cosmic rays detection and rejection, source intensity (photon flux) estimation and data compression. The paper emphasizes different data reduction algorithms and compares their performances with respect to cosmic ray detection efficiency and source intensity estimation error.

Paper Details

Date Published: 28 July 2000
PDF: 14 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393962
Show Author Affiliations
Luca Scandelli, Laben SpA (Italy)
Arnaldo Bonati, Laben SpA (Italy)
Immacolata Bruno, Laben SpA (Italy)
Patricia A. Caraveo, Istituto di Fisica Cosmica/CNR (Italy)
Koos W. Cornelisse, European Space Agency/ESTEC (Netherlands)
Ulrich Denskat, Dornier Satellitensysteme GmbH (Germany)
Massimiliano Pecora, Laben SpA (Italy)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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