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Status of the SPIRE photometer data processing pipelines during the early phases of the Herschel Mission

Dowell, C. Darren and Levenson, Louis and Lu, Nanyao and Schulz, Bernhard and Schwartz, Arnold and Shupe, David L. and Xu, C. Kevin and Zhang, Lijun (2010) Status of the SPIRE photometer data processing pipelines during the early phases of the Herschel Mission. In: Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.7731. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 773136. ISBN 978-0-81948-221-1. https://resolver.caltech.edu/CaltechAUTHORS:20161031-112536408

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Abstract

We describe the current state of the ground segment of Herschel-SPIRE photometer data processing, approximately one year into the mission. The SPIRE photometer operates in two modes: scan mapping and chopped point source photometry. For each mode, the basic analysis pipeline - which follows in reverse the effects from the incidence of light on the telescope to the storage of samples from the detector electronics - is essentially the same as described pre-launch. However, the calibration parameters and detailed numerical algorithms have advanced due to the availability of commissioning and early science observations, resulting in reliable pipelines which produce accurate and sensitive photometry and maps at 250, 350, and 500 μm with minimal residual artifacts. We discuss some detailed aspects of the pipelines on the topics of: detection of cosmic ray glitches, linearization of detector response, correction for focal plane temperature drift, subtraction of detector baselines (offsets), absolute calibration, and basic map making. Several of these topics are still under study with the promise of future enhancements to the pipelines.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.858035DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1346295PublisherArticle
ORCID:
AuthorORCID
Lu, Nanyao0000-0002-8948-1044
Shupe, David L.0000-0003-4401-0430
Xu, C. Kevin0000-0002-1588-6700
Additional Information:© 2010 SPIE The International Society for Optical Engineering. SPIRE has been developed by a consortium of institutes led by Cardiff Univ. (UK) and including Univ. Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, Univ. Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, Univ. Sussex (UK); Caltech, JPL, NHSC, Univ. Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC (UK); and NASA (USA). HCSS, HSpot, and HIPE are a joint development by the Herschel Science Ground Segment Consortium, consisting of ESA, the NASA Herschel Science Center, and the HIFI, PACS and SPIRE consortia. We thank the SPIRE SAG2 for the permission to show their map of NGC 6822 and our commissioning phase map of one of their objects (M83).
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
Canadian Space Agency (CSA)UNSPECIFIED
National Astronomical Observatories, Chinese Academy of Sciences (NAOC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Agenzia Spaziale Italiana (ASI)UNSPECIFIED
Ministerio de Ciencia e Innovación (MCINN)UNSPECIFIED
Swedish National Space Board (SNSB)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
NASAUNSPECIFIED
European Space Agency (ESA)UNSPECIFIED
Subject Keywords:Herschel Space Observatory, far infrared, imaging, bolometer
Series Name:Proceedings of SPIE
Issue or Number:7731
Record Number:CaltechAUTHORS:20161031-112536408
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161031-112536408
Official Citation: C. Darren Dowell ; Michael Pohlen ; Chris Pearson ; Matt Griffin ; Tanya Lim ; George J. Bendo ; Dominique Benielli ; James J. Bock ; Pierre Chanial ; Dave L. Clements ; Luca Conversi ; Marc Ferlet ; Trevor Fulton ; Rene Gastaud ; Jason Glenn ; Tim Grundy ; Steve Guest ; Ken J. King ; Sarah J. Leeks ; Louis Levenson ; Nanyao Lu ; Huw Morris ; Hien Nguyen ; Brian O'Halloran ; Seb Oliver ; Pasquale Panuzzo ; Andreas Papageorgiou ; Edward Polehampton ; Dimitra Rigopoulou ; Helene Roussel ; Nicola Schneider ; Bernhard Schulz ; Arnold Schwartz ; David L. Shupe ; Bruce Sibthorpe ; Sunil Sidher ; Anthony J. Smith ; Bruce M. Swinyard ; Markos Trichas ; Ivan Valtchanov ; Adam L. Woodcraft ; C. Kevin Xu ; Lijun Zhang; Status of the SPIRE photometer data processing pipelines during the early phases of the Herschel Mission. Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 773136 (August 10, 2010); doi:10.1117/12.858035.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71623
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:31 Oct 2016 21:23
Last Modified:03 Oct 2019 16:09

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