Difference: HifiCalibrationWeb (50 vs. 51)

Revision 512013-05-17 - SylvieFBeaulieu

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META TOPICPARENT name="WebHome"

HIFI instrument and calibration web pages

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NEW NEW NEW Latest updates -- 31 January 2013 NEW NEW NEW
  • HIPE 10.0 has been released !
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NEW NEW NEW Latest updates -- 14 May 2013 NEW NEW NEW
  • HIPE 10.1 has been released !
 
  • HIPI (a library of Hifi Plug-In's) - see Interest Groups and Scripts section
  • New matching technique script is available in the Expert Version of HIPE - see the "Outstanding calibration issues" section
  • A large amount of calibration data has been released ! - see the "Observing with HIFI" section
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Reducing HIFI data

Recommended User release

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Which data would most benefit from being reprocessed in HIPE 10.0?

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Which data would most benefit from being reprocessed in HIPE 10.1?

 
  • DBS Observations
    • A new pipeline step, mkDbsReference, calculates the differences the chop positions in all DBS observations and after applying the band-pass correction stores them in a product in calibration->pipeline-out called ReferenceSpectra. This allows you to check for contamination in chop positions for all types of DBS observations.
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  • See the What's New page for more details of improvements in HIPE 10.0
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  • See the What's New page for more details of improvements in HIPE 10.1
 

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Documentation and Cookbooks

  • The HIFI Launch Pad is intended to help you quickly off the ground with HIFI data reduction
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  • If you are working in HIPE, the HIFI Data Reduction Guide will be your prime resource for all things HIFI but you should also look at the Herschel Data Analysis Guide for information about general tools, such as those for viewing and manipulating spectra and spectral cubes, and for obtaining data from the archive.
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  • If you are working in HIPE, the HIFI Data Reduction Guide will be your prime resource for all things HIFI but you should also look at the Herschel Data Analysis Guide for information about general tools, such as those for viewing and manipulating spectra and spectral cubes, and for obtaining data from the archive.
 

  • The full set of online documentation for the current user release also contains detailed information about the HIFI pipeline, information about scripting in HIPE, and reference manuals for command listings. New users of HIPE are recommended to read through the Quick Start Guide and the HIPE Owner's Guide
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  • Information about how to find what calibration version was used on your data, how to get the latest calibration and reprocess observations with it is found in the Pipeline chapter of the HIFI Data reduction Guide
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  • the latest calibration tree pool can be also retrieved directly here (22 January 2013)
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  • the latest calibration tree pool can be also retrieved directly here (16 May 2013)
 
  • Updates to the HIFI calibration data are generally concurrent with the release of each major version of the HCSS-HIFI software. However, it is possible to have updates to the calibration data in between major releases of the software as the software and data are independent of each other, in the table below the HIPE or the OD from which the calibration updates apply are given. The calibration versions available since HIPE 5 are listed in the table below
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  • Beam efficiencies are derived from Mars maps. Deeper beam maps are currently being taken and analysed, and will result in a possible update of the coupling efficiencies. Those will be posted together with 2D beam map for each of the HIFI bands, which could be of particular interest for the interpretation of extended emission
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Outstanding calibration issues

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Outstanding calibration issues

 

  • Standing waves:
    • there are several standing waves that can affect the HIFI data at various processing levels. Their nature and impact on the HIFI calibration are described in the Standing Wave technical note and, more briefly, in the Standing Wave removal chapter of the HIFI Data Reduction Guide
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    • There are various techniques currently offered to clean these baseline distortions:
      • Remove sine waves, or combinations of sine waves. Check the bullet about usage of the fitHifiFringe task in the data reduction section above.
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-- DavidTeyssier and AnthonyMarston - 10 May 2013
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-- DavidTeyssier , CarolynMcCoey and SylvieFBeaulieu - 16 May 2013
 
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