; SNCOP ;--------------------------------------------------------------- ;! Task to copy SN table averaging some input IFs ;# TASK TABLE ;----------------------------------------------------------------------- ;; Copyright (C) 2009, 2013 ;; 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 ;----------------------------------------------------------------------- SNCOP LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC SNCOP task to copy some IFs of input SN table to all output INNAME Input image name (name) INCLASS Input image name (class) INSEQ 0.0 9999.0 Input image name (seq. #) INDISK 0.0 9.0 Input image 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 #. BOX 0.0 IF ranges to average in input ---------------------------------------------------------------- SNCOP Task: SNCOP averages specified IFs in an input SN table and writes an output table with the average real, imaginary, delay, and rate in all IFs. This has two obvious uses: (1) to propagate good solutions in some IFs to those IFs damaged by RFI and (2) to propogate solutions from a data set with some number of IFs to another data set with a different number of IFs. But you should pay special attention: SNCOP averages the real part, averages the imaginary part, etc. If all IFs have amplitude 1.0 but different phases, the the output will NOT have amplitude 1.0 (and may be rather near 0 even). This task is not very selective - all IFs in the output file have the same values equal to the average of the selected IFs from the input. Task CLCOP allows you substantially more control. Note that the antennas, source numbers, subarrays, frequency IDs, etc. in the output file must exactly match those in the input file. Otherwise, the information conveyed in the output SN file will be confusing at best. Adverbs: INNAME.....Input image name (name). Standard defaults. INCLASS....Input image name (class). Standard defaults. INSEQ......Input image name (seq. #). 0 => 1. INDISK.....Disk drive # of input image. 0 => any. INVERS.....Version number of input SN table, 0 => highest 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. BOX........List of input IF ranges to average: 0 => all BOX = I1,I2,I3,I4,I5,I6 averages IFs I1 through I2, I3 through I4, I5 through I6. ----------------------------------------------------------------