
Proceedings Paper
Fibre positioning algorithms for the WEAVE spectrographFormat | Member Price | Non-Member Price |
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Paper Abstract
WEAVE is the next-generation wide-field optical spectroscopy facility for the William Herschel Telescope (WHT) in La
Palma, Canary Islands, Spain. It is a multi-object "pick and place" fibre fed spectrograph with more than one thousand
fibres, similar in concept to the Australian Astronomical Observatory's 2dF1 instrument with two observing plates, one
of which is observing the sky while other is being reconfigured by a robotic fibre positioner. It will be capable of
acquiring more than 10000 star or galaxy spectra a night.
The WEAVE positioner concept uses two robots working in tandem in order to reconfigure a fully populated field within
the expected 1 hour dwell-time for the instrument (a good match between the required exposure times and the limit of
validity for a given configuration due to the effects of differential refraction). This presents additional constraints and
complications for the software that determines the optimal path from one configuration to the next, particularly given the
large number of fibre crossings implied by the 1000 fibre multiplex. This paper describes the algorithms and
programming techniques used in the prototype implementations of the field configuration tool and the fibre positioner
robot controller developed to support the detailed design of WEAVE.
Paper Details
Date Published: 18 July 2014
PDF: 9 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91520P (18 July 2014); doi: 10.1117/12.2055844
Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)
PDF: 9 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91520P (18 July 2014); doi: 10.1117/12.2055844
Show Author Affiliations
David L. Terrett, STFC Rutherford Appleton Lab. (United Kingdom)
Ian J. Lewis, Univ. of Oxford (United Kingdom)
Gavin Dalton, STFC Rutherford Appleton Lab. (United Kingdom)
Univ. of Oxford (United Kingdom)
Don Carlos Abrams, Isaac Newton Group of Telescopes (Spain)
Ian J. Lewis, Univ. of Oxford (United Kingdom)
Gavin Dalton, STFC Rutherford Appleton Lab. (United Kingdom)
Univ. of Oxford (United Kingdom)
Don Carlos Abrams, Isaac Newton Group of Telescopes (Spain)
J. Alfonso L. Aguerri, Instituto de Astrofísica de Canarias (Spain)
Piercarlo Bonifacio, GEPI, Observatoire de Paris à Meudon (France)
Kevin Middleton, STFC Rutherford Appleton Lab. (United Kingdom)
Scott C. Trager, Univ. of Groningen (Netherlands)
Piercarlo Bonifacio, GEPI, Observatoire de Paris à Meudon (France)
Kevin Middleton, STFC Rutherford Appleton Lab. (United Kingdom)
Scott C. Trager, Univ. of Groningen (Netherlands)
Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)
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