ALMA pads and baselines

ALMA baseline lengths

• Computed from the alma.outXX.cfg files in /usr/lib64/casapy/data/alma/simmos/ using 3D Pythagorean formula on the UTM coordinates, suitable for distances up to tens of km
  
  • (on a Mac: /Applications/CASA.app/Contents/Resources/casa-data/alma/simmos/)
• For a plot of beamsize vs. configuration number, see this casaguide page

Relevant links

• basic info on antenna position fitting
• Antenna fiber performance measurement status table
• plotconfig: command that generates the plots in the first column of the table below
• spreadsheets:
  • Richard Hills' spreadsheet of AOS pad positions in various coordinate systems
  • Todd's modified spreadsheet (to add old CASA ID numbers) (September 2014)
  • Remy's modified spreadsheet (in ENU coordinates), accounting for Rainer's information (July 2013)
    • doing the geocentric->local transformation using the new COFA (as well as the previous master0)
    • Name changes:
      • W201-W210 --> P401-P410
      • P401-P403 --> S307-S309
      • P404-P413 --> W201-W210
      • S304-S309 --> S301-S306
    • most of the W pads moved by some tens of meters
    • S307 by 134m; P409 and P413 by 329 and 1626m respectively
• CASA tickets: CAS-3437: Converting antenna positions to local coordinates using functions in simutil disagrees with the plotants plot by many tens of meters (resolved in casa rev25324)
• Antenna and pad naming scheme document (Beasley 2007)
• buildConfigurationFile
• Cycle 0 hybrid configuration based on Al's email of August 8, 2012
• Weather station position is given in ICT-272: [2225264, -5440257, -2481099]