; SNDUP ;--------------------------------------------------------------- ;! copies and duplicates SN table from single pol file to dual pol ;# Task Calibration ;----------------------------------------------------------------------- ;; Copyright (C) 1997 ;; Associated Universities, Inc. Washington DC, USA. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License as ;; published by the Free Software Foundation; either version 2 of ;; the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public ;; License along with this program; if not, write to the Free ;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, ;; MA 02139, USA. ;; ;; Correspondence concerning AIPS should be addressed as follows: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- ;--------------------------------------------------------------- SNDUP LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC SNDUP Task which copies single-pol SN entries to dual pol. INNAME Input UV file name (name) INCLASS Input UV file name (class) INSEQ 0.0 9999.0 Input UV file name (seq. #) INDISK Input UV file disk unit # INVERS Input table file version no. OUTNAME Output image name (name) OUTCLASS Output image name (class) OUTSEQ -1.0 9999.0 Output image name (seq. #) OUTDISK 0.0 9.0 Output image disk unit #. OUTVERS Output table file version. ---------------------------------------------------------------- SNDUP Task: Task which copies single-pol SN entries to dual pol. This task is used in dual polarization observations. When calibration is performed on a single polarization (say RR) then SNDUP will copy the SN table generated to a file with either 2 or 4 polarizations. It will copy the entries from the single polarization SN table to both RCP and LCP columns in the output SN table. SNCOR can then be used to correct for any (hopefully constant) R-L delay and/or phase differences. Calibrating in this manner makes no assumption about there being zero Stokes V polarization as would happen if the calibration was generated using Stokes I. Adverbs: INNAME.....Input UV file name (name). Standard defaults. INCLASS....Input UV file name (class). Standard defaults. INSEQ......Input UV file name (seq. #). 0 => highest. INDISK.....Disk drive # of input UV file. 0 => any. INVERS.....Version number of table to copy, 0=>highest no. OUTNAME....Output image name (name). Standard defaults. OUTCLASS...Output image name (class). Standard defaults. OUTSEQ.....Output image name (seq. #). 0 => highest unique. OUTDISK....Disk drive # of output image. 0 => highest disk number with sufficient space. OUTVERS....Output version number, 0=> next higher. ----------------------------------------------------------------