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Herschel/HIFI In-fl...
Herschel/HIFI In-flight commissioning and performance
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- Teyssier, D. (author)
- European Space Astronomy Centre (ESAC)
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- Risacher, C. (author)
- Netherlands Institute for Space Research (SRON)
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- Dieleman, P. (author)
- Netherlands Institute for Space Research (SRON)
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- Laauwen, W. (author)
- Netherlands Institute for Space Research (SRON)
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- de Jonge, A. (author)
- Netherlands Institute for Space Research (SRON)
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- Braine, J. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Caris, M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Coeur-Joly, O. (author)
- Université de Toulouse,University of Toulouse
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- Delforge, B. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Helmich, F. (author)
- Netherlands Institute for Space Research (SRON)
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- Herpin, F. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Higgins, R. (author)
- Maynooth University
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- Jellema, W. (author)
- Netherlands Institute for Space Research (SRON)
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- Klein, T. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Kooi, J. (author)
- California Institute of Technology (Caltech)
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- Leinz, C. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Edwards, K. (author)
- Netherlands Institute for Space Research (SRON)
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- Marston, A. P. (author)
- European Space Astronomy Centre (ESAC)
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- Morris, P. (author)
- California Institute of Technology (Caltech)
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- Olberg, Michael, 1956 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ossenkopf, V. (author)
- Universität zu Köln,University of Cologne
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Pearson, J. C. (author)
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- Roelfsema, P. (author)
- Netherlands Institute for Space Research (SRON)
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- Shipman, R. (author)
- Netherlands Institute for Space Research (SRON)
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(creator_code:org_t)
- ISBN 9781617823626
- 2010
- 2010
- English.
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In: 21st International Symposium on Space Terahertz Technology 2010, ISSTT 2010; Oxford; United Kingdom; 23 March 2010 through 25 March 2010. - 9781617823626 ; , s. 23-28
- Related links:
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https://research.cha...
Abstract
Subject headings
Close
- The Herschel Space Observatory was successfully launched on the 14th of May, 2009, lifting into space the Heterodyne Instrument for the Far-Infrared (HIFI). After the standard early orbit operations on the Space-craft, the instrument was switched on for the first time on the 24th of May, kicking off an instrument Commissioning period of more than a month and a half. We present here the outcome of this Commissioning campaign, including the measured in-flight performance of the instrument. Among the challenges encountered during this period was the need to optimize the stability of the signal provided by the Local Oscillator (LO) chains in some of the frequency bands, in particular that covering the singly Ionized Carbon (C+) line at the upper edge of the HIFI range, and one of the backbones of the science program of the instrument. The same concept also allowed significant improvements in the upper end of the 3b LO chain. Another noticeable achievement was the very good co-alignment measured between the mixer beams in the respective H and V polarizations offered by HIFI, allowing for more than a simple build-in redundancy, as the observing efficiency will really benefits from the combination of the two mixers.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Local oscillators
- Observing efficiency
- Chains
- In-flight performance
- Instrument commissioning
- Instruments
- Frequency bands
- C (programming language)
- Mixers (machinery)
- Herschel space observatories
- Optimize the stabilities
- Heterodyne instruments
- Build-in redundancy
Publication and Content Type
- kon (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Teyssier, D.
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Risacher, C.
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Dieleman, P.
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Laauwen, W.
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de Jonge, A.
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Braine, J.
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show more...
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Caris, M.
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Coeur-Joly, O.
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Delforge, B.
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Helmich, F.
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Herpin, F.
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Higgins, R.
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Jellema, W.
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Klein, T.
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Kooi, J.
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Leinz, C.
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Edwards, K.
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Marston, A. P.
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Morris, P.
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Olberg, Michael, ...
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Ossenkopf, V.
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Pearson, J. C.
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Roelfsema, P.
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Shipman, R.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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21st Internation ...
- By the university
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Chalmers University of Technology