HIFI data reduction tools (expected updates for HIPE 6):

  • Pipeline will no longer attempt to access HSA when processing using calibration included in ObservationContext As a consequence, the pipeline must be configured with ConfigureHifiPipeline to use a different location (e.g., HSA) for the calibration/auxilliary and to save each level immediately after processing
  • Bug fixed: in HIPE 5.1 if aux=True is specified the uplink product is not updated and pipeline fails
  • New algorithm for load chop and frequency switch data to avoid ‘CCD scratches’ and improve baselines
  • Possible to create a cal pool from HSA with HifiCalTask - efficient way to reprocess observations with updated calibration
  • It will be possible to configure the pipeline to omit steps or use non-default task parameters in Level 1 and 2 pipelines. Proto-type already in HIPE 6 developer builds but has issues…
  • Bug fix: Updated calibration in HSA appears as proprietary to new non super-users. To be fixed by HSA in 6.0 or 7.0
  • New trend product: rms. This is calculated for the full bandwidth with no line masking
  • Appropriate smoothing of OFF position in Load Chop with OFF spectra. Expected to remove many of the ripple issues seen using this mode with reprocessing.
  • Removal of 'scratches' in calibrated data in FSW and LChop observations (notably WBS-V) by applying the intensity calibration before the reference position is smoothed and subtracted removes the ‘scratches’. This also improves baseline noise level.

-- AnthonyMarston - 31 Jan 2011

Topic revision: r1 - 2011-01-31 - AnthonyMarston
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