Calibration Plan

TIP Last Update: JeffMangum - 16 Aug 2007



Current Draft

CalibrationPlan.pdf: 2006-09-06 Version. Note that this document is an overview of the detailed descriptions of each type of calibration given in the "example" documents.


Calibration Planning and TelCal

Parallel development of the software capabilities for acquiring and processing calibration measurements is being developed as part of TelCal. For example, the TelCal developers have plans for:


Calibration Plan Development "Roadmap"

The following figure represents the ALMA calibration plan "roadmap". The major input categories in this diagram are:

  • ALMA Design Documentation and Experience: The development of each calibration measurement starts with the low-level science, system, and calibration requirements augmented with experience from the development and use of other radio and millimeter interferometers.
  • Calibration Examples/Descriptions: Atomic level descriptions of each type of calibration based on the science requirements and system characteristics. These descriptions list the measurements made during a calibration measurement and any issues or options to be considered in their development.
  • Hardware/Software Calibration Observation Sequences: In collaboration with the Computing, Frontend, Backend, and Systems IPTs the example descriptions of each calibration type are collected into an observation sequence. These then represent ``scheduling block'' level definitions of a calibration measurement.
  • Observing Modes: Using the observation sequences developed for each type of calibration, appropriately sequenced calibration measurements (with input from the Calibration Matrix of predecessors) are coupled to the various ALMA observing modes.
    Calibration Plan Organiztion.jpg


Calibration Matrix

Current version of the Calibration Matrix which lists dependences between various types of calibration measurement.


Calibration Plan Action Item List

Assigned to Due date Description State Notify  
JeffMangum, MarkHoldaway, JimGibson 2006-04-01 Update "Direct Antenna Gain Measurements" section of Amplitude and Flux Calibration section of Calibration Plan. (go to action) closed JeffMangum, MarkHoldaway, JimGibson edit
MarkHoldaway, JohnRicher 2004-10-15 Update WVR calibration description of Phase Calibration section of Calibration Plan. (go to action) closed MarkHoldaway, JohnRicher edit
JeffMangum 2005-11-01 Update calibration examples in Calibration Plan. Need this in advance of amplitude calibration meeting 2005 August 25. (go to action) closed edit
JeffMangum 2006-09-01 Add calibration "dependencies" to Calibration Plan. (go to action) closed JeffMangum edit
JeffMangum, MarkHoldaway, JimGibson 2004-10-01 Update amplitude calibration section of Calibration Plan.
Done, but "Direct Antenna Gain Measurements" section needs revision. (go to action)
closed JeffMangum, MarkHoldaway, JimGibson edit
MarkHoldaway, JohnRicher 2004-10-01 Update phase calibration section of Calibration Plan.
Done, but WVR information needs update. (go to action)
closed MarkHoldaway, JohnRicher edit
JeffMangum 2004-10-01 Update bandpass calibration section of Calibration Plan. (go to action) closed edit
MarkHoldaway 2004-10-01 Update polarization calibration section of Calibration Plan. (go to action) closed MarkHoldaway edit
JeffMangum, RobertLucas 2004-10-01 Update pointing calibration section of Calibration Plan. (go to action) closed JeffMangum, RobertLucas edit
JohnConway 2004-10-01 Update antenna location calibration section of Calibration Plan. (go to action) closed edit
RobertLucas 2004-10-01 Update antenna and electronic delay calibration section of Calibration Plan. (go to action) closed edit
JeffMangum 2004-10-01 Update optics calibration section of Calibration Plan. (go to action) closed JeffMangum edit
MarkHoldaway 2004-10-01 Update total power calibration section of Calibration Plan. (go to action) closed edit
MarkHoldaway 2004-10-01 Update primary beam calibration section of Calibration Plan. (go to action) closed edit
RobertLucas 2004-10-01 Update archiving and accessing calibration quantities section of Calibration Plan.
At this point I do not see anything to change - but we'll discuss this in the SSR and computing IPT (go to action)
closed edit


Topic attachments
I AttachmentSorted ascending Action Size Date Who Comment
ALMACalibrationASAC2006.pptppt ALMACalibrationASAC2006.ppt manage 1 MB 2006-09-14 - 10:36 JeffMangum  
CalibrationMatrix.pdfpdf CalibrationMatrix.pdf manage 42 K 2006-09-11 - 09:56 JeffMangum  
CalibrationPlan.pdfpdf CalibrationPlan.pdf manage 424 K 2006-09-06 - 10:00 JeffMangum  
CalibrationPlanOrganization.jpgjpg CalibrationPlanOrganization.jpg manage 134 K 2006-09-01 - 09:00 JeffMangum  
This topic: ALMA > WebHome > AlmaSci > AlmaCal > CalPlan
Topic revision: 2007-10-26, JeffMangum
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