Difference: HipeWhatsNew8x (71 vs. 72)

Revision 722011-12-09 - CarolynMcCoey

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META TOPICPARENT name="HipeWhatsNew"

What's new in HIPE 8

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Level 2 Pipeline

  • Sideband gains coefficients added to metadata.
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  • doGridding now uses AOT parameters in the meta data (such as beam size, map size, and - for observations after OD 835) to create cubes that reflect how the observation was carried out. In the past gridding was done based only on a linear approximation of the beam size and for half beam or Nyquist spacing.
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  • doGridding now uses AOT parameters in the meta data (such as beam size, map size, and - for observations after OD 835 - readout and line separations) to create cubes that reflect how the observation was carried out.

Note that for the needed meta data to be present, the observation must be pipelined with HIPE 8 after the level 0 pipeline step doUplink has been run on the HTP.

Maps older than OD 835 will not have the readout and line spacings in the the meta data (this will happen with HIPE 9) instead doGridding calculates an approximate pixel size based on other meta data.

  Other changes include:
    • the GUI now modifies filter parameters in connection with changes to pixel size entered in the GUI
    • introduction of a flyAngle parameter to allow the easy creation of rotated maps
Added:
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    • a box filter is automatically used for greater than Nyquist sampled DBS Raster maps
 

HIFI Products

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    • Addition of chapter, How to flag and remove flags from your data.
    • Addition of chapter, Unit Conversion.
    • Updates to chapters on Pipeline, Deconvolution, Creating Spectral Cubes, What was done to my data (clarifying units at each stage of the pipeline).
Changed:
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  • Updates the examples in the HIFI Pipeline Specification Document.
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  • Updates to the examples in the HIFI Pipeline Specification Document.
 
  • HIFI User Reference Manual (URM) improvements.
    • All HIFI tasks in URM now have a category and show up in the categorised view of commands.
    • The categorised view of commands now is grouped into headers that should be meaningful to astronomers.
 
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