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UniPOPS SDD data file

There are three steps to getting a UniPOPS SDD data file into DISH:

1. Convert UniPOPS SDD data to UniPOPS FITS binary table.

   Use the UniPOPS utility uni2fits to convert the SDD data to FITS binary format. To use the program, you must be logged onto a Sun workstation where UniPOPS has previously been installed and have your path include:

   export popsdir=~unipops/test/
   export PATH=$popsdir/sunbin:$popsdir/utilities:$PATH
   purgatory<143>$ uni2fits
   Starting uni2fits ver 1.3 
   So you want to write UniPOPS data to FITS tape eh?
    (to abort this dialog, type CNTRL-C)
    
   Do you want output file on disk(D) or tape(T)? [default=D]: 
   Using default (D).
   Please enter name of output FITS file: hbnmeth.fits
   Output file will be: hbnmeth.fits 
    
   Choose line or continuum (L, C) [default=L]:    
   Using default (L)
    
   Label scan axis as Frequency(F) or Velocity(V) [default=F]: V
    
   Please type input UniPOPS file name: sdd.www_001
   Do you want to choose a scan number range? (y or n) n
   --------------------------------------------------------
   Ready to make FITS file, name = hbnmeth.fits
    Will use all L scans from sdd.www_001.
    is this ok? (type Y to proceed) Y 
    
   Getting initial information from UniPOPS file.
   1+0 records in
   1+0 records out
    
   Previewing the UniPOPS file.
   
   u2f version 1.5 (22Apr98),  run: Fri Oct 13 14:19:36 2000
   12182+0 records in
   12182+0 records out
   Wrote 0 scans out of 3018; 0 fits records written. 
    
   Converting the data to FITS.
   
   u2f version 1.5 (22Apr98),  run: Fri Oct 13 14:20:50 2000
   12182+0 records in
   12182+0 records out
   Wrote 2674 scans out of 3018; 1675 fits records written. 
    
   FITS writing complete.
   

2. Convert UniPOPS FITS to standard SDFITS.

   Use the AIPS++ utility uni2sdfits to convert the data file. The syntax is:

   uni2sdfits input=unipops_fits_file output=sdfits_file
   e.g.
   charybdis<276>$ which uni2sdfits
   /aips++/daily/linux/bin/uni2sdfits
   charybdis<277>$ uni2sdfits input=hbnmeth.fits output=hbnmeth.sdfits  
   uni2sdfits: Version 1999/07/30 BEG/TPPR/PJT/GvD
   
   Scanning all HDUs looking for any non-constant DATA column shapes
   Skipping HDU 0 of type : 1
   Scanning HDU 1 of type : 4
   HDU 1 is a BinaryTable with fixed shape DATA column with TDIM = (128,1,1,1,1)
   Primary HDU
   HDU # 1
   column SERIES renamed to DATA
   column BANDWIDT renamed to BANDWID
   column PROJECT renamed to PROJID
   column VELOCITY renamed to VFRAME
   column VCORR renamed to RVSYS
   column TOUTSIDE renamed to TAMBIENT
   column BEAMWIDT renamed to BMAJ
   NMATRIX keyword removed
   MAXIS keyword removed
   MAXIS2 keyword removed
   MAXIS3 keyword removed
   MAXIS4 keyword removed
   MAXIS5 keyword removed
   Removing column 2 : MAXIS1  
   keyword value set: TDIM195 = (128,1,1,1,1)
   done.
   

3. Convert the SDFITS file to an AIPS++ table (either a MS or a flat table). See Section 2.2.