Atacama Large Millimeter/submillimeter Array
Karl G. Jansky Very Large Array
Robert C. Byrd Green Bank Telescope
Very Long Baseline Array
ALMA Pipeline Progress and Status
ANASAC Face-to-Face
Sept 16-17, 2013
Jeff Kern
CASA Team Lead
ALMA
Pipeline Status
•ALMA Interferometric Pipeline is ready to support Cycle 1 Data reduction
–Calibration and Diagnostic Images of Phase and Bandpass Calibrators
–Single Dish through imaging*
–No support for combination
–Some human intervention still required:
•Calibrator Fluxes
•Extraordinary Flagging
•Rapid progress made in past year:
–Tiger Team led by Todd Hunter
–Built on experience from cycle-0 reduction
* Still developing global consensus on best single dish reduction. Pipeline isclosely connected to this discussion.
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ANASAC Face-to-Face: Sept. 16,17 2013
ALMA
Organization
•Pipeline Working Group now formed
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Liz Humphries (Chair)
Eric Villard (Deputy)
Remy Indebetouw
Hiroko Shinnaga
Todd Hunter (ex officio: Tiger Team Lead)
•International test / user team
–NAASC Data Analysts
–JAO Data Content Managers
ALMA
Cycle-1 Operations
•Early Cycle-1: Parallel Reduction
–Each ARC organized slightly differently
–Pipeline and manual scripts will be run in parallel results compared byreducer
•Common feedback forms to pipeline to describe meaningfuldifferences from human reduction.
•Late Cycle-1: Pipeline Calibration
–Pipeline does primary calibration for most projects
•Band 9, special cases still needs manual reduction.
•Data reducer starts with calibrated data from the archive and doesreference imaging.
Actually had hoped to already be at this state by now!
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ALMA
ALMA PipelineExecution Summary
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ALMA
ALMA PipelineObservation Summary
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ALMA
ALMA PipelineTask Summary
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ALMA
ALMA PipelineTask Summary
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ALMA
ALMA PipelineTask Details
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ALMA
ALMA PipelineCalibrator Image Production
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ALMA
ALMA PipelineTarget Imaging
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ALMA
Looking Forward
•Support for cycle-1 operations:
–Dealing with bugs (ours and theirs)
•WebLog
–Meeting existing requirements from first focus group meeting
–Revisit WebLog requirements (Q1-2014) based on experience forCycle 1
•Cycle-2 Capabilities
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•More complicated SPW setups
•Initial Polarization Calibration
•Low SNR Cases (Band 9)
•[More] Flagging Heuristics
•Science Target Imaging:
•Are we meeting targets.
Planning for user test prior to Cycle-2 Operations to gather responses from Cycle 1Experience.
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www.nrao.edu • science.nrao.edu