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VLASS 2022 Priorities

  • Cube Imaging pipeline PIPEREQ-142
  • Resolved calibrator handling PIPEREQ-132
  • Imaging fails in some cases in 2021.2 (PIPE-1173)

  • Change VLASS parameter compressionusemedian default from False to True (PIPE-1338)

  • Change hifv_targetflag to flag target data using a .flagtargetstemplate.txt - (PIPE-37)


VLA 2022 Priorities


Prioritized list:

Critical:

  • Add plots to statwt weblog in PI pipeline(PIPE-1341)
  • Flagging Heuristics on outlier weights (ticket to be created)
  • Backup flags in hifv_applycal prior to calibration (PIPE-854)
  • Change hifv_targetflag to flag target data using a .flagtargetstemplate.txt - (PIPE-37)
  • Enable self-calibration heuristics for continuum data only in new task (hif_selfcal) and operate on only the _cont.ms (PIPE-)

  • Ability to use _line and cont.ms in different pipeline tasks. (PIPE-)

  • Spectral line calibration recipe definition (PIPE-1344)

  • Zoom-in plots on non-128 MHz windows for inspection of bandpass in finalcals, semifinalBPdcals,testBPdcals (PIPE-)
  • Enable basic cube imaging (PIPE-1346)

  • Possible RFI flagging refinements

  • combine targetflag heuristics into checkflag - (PIPE-1342)
  • flux calibrator RFI flagging should use residuals - (PIPE-1274)


Major:

  • Detect mosaicked fields and perform joint deconvolution with mosaic gridder (PIPE-684)
  • wproject and n- w-planes heuristics for VLA imaging pipeline (J. Marvil input)
  • PIPE-1287 - fluxboot failing with target intent using pointing and a CG intent with the pointing setup
  • PIPE-1335 - selection heuristics when delay calibrator mixed with CG intent
  • Long solution interval calculation improvement (PIPE-1002/PIPEREQ-64)
  • Short Solution interval calculation improvments (PIPE-1340)
  • Use MS tool hanning smoothing to enable per spw hanning smoothing (CASR-523; PIPE-672)
  • per baseline flagging - (PIPE-1286)
  • Fluxboot QA metric adjustments (PIPEREQ-8/PIPE-989)

Minor:

  • Zoom feature for all hif_makeimages plots (PIPE-1083)
  • plot labels in semifinalbpdcals (PIPE-984)
  • parallactic angle vs time plot (PIPE-836)
  • Add API plot to VLA pipeline runs (PIPE-580)
  • Report total MS sizes at end of calibration on main weblog page (PIPE-1166)
  • multi-band weblog plots should not use shared time axis for plots (PIPE-1044)
  • Zeros flagged not reported properly (PIPE-1033)
  • Make an untarred MS when making a basic MS PIPE-749
  • PIPE-1098 - cont.dat failures for targets with some characters


Backburner:

  • Per-baseband delay solutions (PIPE-670)

  • Spectral window mapping for gain calibration (PIPE-671)

    • enables phase calibration if not enough S/N due to faint calibrator

  • Antenna position corrections in a post-observation time window (CASR-556)

  • Gain table flagging extensions

    • Ripple detection (bad switch problem) (PIPEREQ-11)

    • Gain outlier detection (PIPEREQ-10)

  • Enhanced DTS issue identification and flagging (CASR-563/PIPE-986)

    • Option to disable bad deformatter flagging completely or partially, (PIPE-1183)
  • Generalize hifv_circfeedpolcal for all bands

  • Enable experimental P-band calibration

  • Define requirements for the continuum imaging pipeline to use outlier fields to remove effects of bright sources rather than using large images
  • RFI flagging on uv-grid (CASR-496)
    • avoids flagging of bright spectral lines
  • Enable data weights to be determined from switched power (CASR-476)



Bugs

  • PIPE-1287 - fluxboot failing with target intent using pointing and a CG intent with the pointing setup
  • PIPE-1335 - selection heuristics when delay calibrator mixed with CG intent
  • PIPE-1098 - cont.dat failures for targets with some characters

Calibration and Flagging

  • Enhanced DTS issue identification and flagging (CASR-563/PIPE-986)

    • Option to disable bad deformatter flagging completely or partially, (PIPE-1183)

  • Possible RFI flagging refinements

    • per baseline flagging - (PIPE-1286)
    • combine targetflag heuristics into checkflag - (PIPE-1342)
    • flux calibrator RFI flagging should use residuals - (PIPE-1274)
  • Backup flags in hifv_applycal prior to calibration (PIPE-854)
  • Change hifv_targetflag to flag target data using a .flagtargetstemplate.txt - (PIPE-37)
  • Add plots to statwt weblog in PI pipeline (PIPE-1341)
  • Long solution interval calculation improvement (PIPE-1002/PIPEREQ-64)
  • Short Solution interval calculation improvments (PIPE-1340)

  • Per-baseband delay solutions (PIPE-670)

  • Spectral window mapping for gain calibration (PIPE-671)

    • enables phase calibration if not enough S/N due to faint calibrator

  • Antenna position corrections in a post-observation time window (CASR-556)

  • Gain table flagging extensions

    • Ripple detection (bad switch problem) (PIPEREQ-11)

    • Gain outlier detection (PIPEREQ-10)

  • Fluxboot gain solution flagging (PIPEREQ-9)

  • Fluxboot QA metric adjustments (PIPEREQ-8)


Self-calibration

  • Enable self-calibration heuristics for continuum data only in new task (hif_selfcal) and operate on only the _cont.ms (PIPE-)
    • Joint ALMA and VLA development and should work on both types of data
    • SRDP heuristics team input


Spectral lines

  • Ability to use _line and cont.ms in different pipeline tasks.

  • Spectral line calibration recipe definition (PIPE-1344)

    • Save pre-target RFI flagging and split non-RFI flagged data after hifv_statwt using a new task (PIPE-1343)
  • For VLA data, enable steps to run findcont to only run on line spws
    • hif_makeimlist(specmode='mfs')
    • hif_findcont()
    • hif_uvcontfit()
    • hif_uvcontsub()

  • Spectral window mapping for gain calibration (PIPE-671)

    • enables phase calibration if not enough S/N on narrow spws

  • Use MS tool hanning smoothing to enable per spw hanning smoothing (CASR-523; PIPE-672)
  • Zoom-in plots on non-128 MHz windows for inspection of bandpass in finalcals, semifinalBPdcals,testBPdcals
  • Cont.dat interpretation to treat non-specified spws as continuum-only (PIPE-1043)


Weblog

  • Zoom feature for all hif_makeimages plots (PIPE-1083)
  • plot labels in semifinalbpdcals (PIPE-984)
  • parallactic angle vs time plot (PIPE-836)
  • Add API plot to VLA pipeline runs (PIPE-580)


Minor things

  • Report total MS sizes at end of calibration on main weblog page (PIPE-1166)
  • multi-band weblog plots should not use shared time axis for plots (PIPE-1044)
  • Zeros flagged not reported properly (PIPE-1033)
  • Make an untarred MS when making a basic MS PIPE-749




Imaging

  • Detect mosaicked fields and perform joint deconvolution with mosaic gridder (PIPE-684)

  • Enable basic cube imaging (PIPE-1346)

  • wproject and n- w-planes heuristics for VLA imaging pipeline (J. Marvil input)


Backburner (CASA development or low priority):

  • Generalize hifv_circfeedpolcal for all bands

  • Enable experimental P-band calibration

  • Define requirements for the continuum imaging pipeline to use outlier fields to remove effects of bright sources rather than using large images
  • RFI flagging on uv-grid (CASR-496)
    • avoids flagging of bright spectral lines
  • Enable data weights to be determined from switched power (CASR-476)





2021 Priorities

Primary Development Priorities

Calibration and Flagging

  • Enhanced DTS issue identification and flagging (CASR-563)

  • Improved calibrator RFI flagging heuristics (PIPEREQ-12; PIPE-939)

  • Gaintable flagging heuristics to ID bad data

  • Per-baseband delay solutions (PIPE-670)

  • Spectral window mapping for gain calibration (PIPE-671)

    • enables phase calibration if not enough S/N due to faint calibrator

  • Antenna position corrections in a post-observation time window (CASR-556)

  • Gain table flagging extensions

    • Ripple detection (bad switch problem) (PIPEREQ-11)

    • Gain outlier detection (PIPEREQ-10)

  • Fluxboot gain solution flagging (PIPEREQ-9)

  • Fluxboot QA metric adjustments (PIPEREQ-8)

  • Target RFI Flagging (CASR-540)

  • Enable data weights to be determined from switched power (CASR-476)

  • Use MS tool hanning smoothing to enable per spw hanning smoothing (CASR-523; PIPE-672)

  • Spectral window mapping for gain calibration (PIPE-671)

    • enables phase calibration if not enough S/N on narrow spws

  • RFI flagging on uv-grid (CASR-496)

    • avoids flagging of bright spectral lines

  • Cont.dat interpretation to treat non-specified spws as continuum-only

  • Design and set up independent spectral line calibration recipe that could be used by end users or triggered using recalibration workflow


Imaging

  • Detect mosaicked fields and perform joint deconvolution with mosaic gridder

  • Enable basic cube imaging

  • Enable automasking for VLA continuum imaging pipeline

Stretch Priorities

  • Generalize hifv_circfeedpolcal for all bands

  • Enable experimental P-band calibration

  • Enable pipeline to use two MS files to perform continuum on one and spectral line optimized calibration on the other when spectral lines are a science goal set in PST

  • Define requirements for the continuum imaging pipeline to use outlier fields to remove effects of bright sources rather than using large images


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