Difference: HipeWhatsNew8x (37 vs. 38)

Revision 382011-11-02 - CarolynMcCoey

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META TOPICPARENT name="HipeWhatsNew"

What's coming up in HIPE 8

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Spectra

Display

Analysis

Added:
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  • The SpectrumFitter now recognizes a CUBE such that the user can give the x,y of the spectrum. The script as written by the SpectrumFitterGUI also takes the correct spectrum.
 
Changed:
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The SpectrumFitter now recognizes a CUBE such that the user can give the x,y of the spectrum. The script as written by the SpectrumFitterGUI also takes the correct spectrum.
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  • avg now warns if wavescales are not sufficiently aligned to get a good result
 
Added:
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  • various changes when applying toolbox tasks to cubes, in particular avg, select and extract now allow you to work on several pixels/spaxels within the cube rather than only the entire cube.

  • resampling task now allows alternative ways to specify the grid for resampling.
 

Data cubes

Display

Analysis

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HIFI Software Configuration and Properties

HIFI Calibration

Added:
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  • Updates to Calibration tree (HICAL-30)
    • Spur table (7b)
    • FPU HK Thresholds (5a) (Prevents unnecessary Quality Flags)
    • Units added to columns (Prevents unnecessary Quality Flags)
    • Wbs Bad Pixel (saturated regions) (Causes necessary Quality Flags)
    • QC flags for bad LOU currents (Causes necessary Quality Flags)
    • Uplink auxiliary product parameter filtering (First steps in ensuring information about the way the observation was carried out is put in the meta data)
 

HIFI Pipeline

hifiPipeline task

Added:
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  • Can now select calibration version to reprocess data with (command line only)

  • By default the pipeline now runs without saving products. Previously it always wrote output to .hcss/lstore/pipeline-out, which in theory allowed users to access processed observations from that location. This was rarely used and could cause disk space problems.

  • Improvements to tooltips in the Pipeline GUI

 

Level 0 Pipeline

Added:
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  • DoUplink now uses the new uplink auxiliary product to set some observation parameters in the meta data, e.g., mapReadoutSep and mapLineStep

  • Suppression of unneeded Quality Flags: Quality check for mixer voltage now accounts for magnet tuning.

 

WBS Pipeline

HRS Pipeline

Level 1 Pipeline

Added:
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  • New (optional) pipeline step allowing smooth band pass to eliminate standing waves: DoFilterLoadsTask. This is an alternative calibration scheme for strong continuum sources.

  • Substantial refactoring of CheckFrequencyGrid to correct assumptions made about the sequence of on-, off- and hc-datasets. This primarily affected HEB band data and resulted in unnecessary Quality Flags being raised.
 

Level 2 Pipeline

Added:
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  • Sideband gains coefficients added to meta data
 

HIFI Products

Added:
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  • Meta data calVersion is applied to all calibrated products and has format HIFI_CAL_version_number

  • Updated browse image for point mode observations.
 

HIFI Spectrum Toolbox

Spectrum Explorer (HIFI specifics)

Spectrum tasks (HIFI specifics)

Added:
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  • Introduction of FlagToolTask, which allows you go through every subband of a SpectrumDataset and interactively flag spurs, lines, bright lines, and data to ignore. Input data can be an Observation context, a HifiTimelineProduct, or a SpectrumDataset

  • PolarPair is now a task

 

HIFI Data Processing Tools

Standing Wave Removal

Added:
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  • Average mask option in FitHifiFringe introduced.
    • Allows a line mask to be calculated based on the average of all scans. Makes fringe removal from maps much more efficient.

  • Variable result_sds should no longer created if FitHifiFringe is run from the GUI with obs_or_htp input

  • When an Observation Context is supplied standing waves are now automatically removed from both upper and lower sidebands.

 

Baseline Removal

Added:
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  • FitBaseline now operates in interactive mode as default

  • The automask check box now only has "True" or "False" options, previously the grey box "ignore" was operational and could allow you to misunderstand what you were asking the GUI to do.

  • You can now enter the back-end to be corrected directly into the GUI.

  • FitBaseline 'divide' option now handles negative signals robustly.

 

Deconvolution

Added:
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  • Some output from doDeconvolution is now written to the console as it runs - helpful to know HIPE has not crashed!

  • doDeconvolution now picks up the applied sideband gains from the meta data and "undoes" their effect on the incoming DSB data. Then the user running the deconvolution can then apply gains on or gains off. The pipeline supplied gains can in this way offer an optional starting point for the gain iteration inside the deconvolution.
    • This only has practical application for band 2 data at present.

  • New redundancy product allows you to overplot redundancy on the SSB solution. Helpful to identify where the SSB solution may not be reliable.

  • SSB spectrum now has y-axis labels "Antenna Temperature (K)", x-axis label changed to "Frequency (GHz)"

  • When diagnostic mode is turned on, doDeconvolution now produces an interim product in addition to the pop-up plots.

  • The min chi squared and the number of iterations are now included in the meta data of the SSB solution

  • Bug fix: potential lines shifts resulting from rounding errors in doDeconvolution.

 

Spectral Cube creation

Added:
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  • BeamSize is now taken from the calibration tree if "hpbw" is in the metadata
    • If the "hpbw" is not in the meta data, the beam size is calculated in the same way as in convertK2Jy using the rfreq in the meta data

* Can rotate maps using new parameter, FlyAngle

  • GUI behaviour modified:
    • Picks up information from meta data to provide better default input parameters
    • Changes to values in the GUI form now only go in one direction, e.g. changing PixelSize changes the Beam and Filter Parameters but not vice versa.
 

HiClass export tool

Added:
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  • You can now create keywords when exporting to CLASS fits format.
 

Documentation

Added:
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  • HIFI User's Manual changed name to HIFI Data Reduction Guide, chapters rearranged into more logical order, addition of a changelog
    • Addition of introductory chapter, "HIFI Launch Pad"
    • Addition of a DBS Point Mode cookbook
    • 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),
  • Updates 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
    • Many URM entries have been improved so that decriptions are clear and examples are useful

 

PACS

 
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