; CCSEL ;--------------------------------------------------------------- ;! Select signifigant CC components ;# Task Utility OOP ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 2009, 2020 ;; 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 ;----------------------------------------------------------------------- CCSEL LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCSEL: Select significant CC components INNAME Main input file (name). INCLASS Main input file (class). INSEQ 0.0 9999.0 Main input file (seq. #). 0 => high INDISK 0.0 9.0 Disk unit #. 0 => any INVERS Input file version no. OUTVERS Output file version. BCOUNT 0.0 99999.0 Beginning row to copy ECOUNT 0.0 99999.0 Last row to copy: 0 => end RADIUS Radius to sum (asec) CUTOFF Minimum summed flux < 0 -> min absolute value ---------------------------------------------------------------- CCSEL Type: Task Use: CCSEL is intended to filter out weak isolated CLEAN components which can cause a signifigant bias. This task sums the flux of all components within a specified distance of each component and then selects those components for which this sum exceeds a specified threshold. The fluxes of the components are not modified. There is currently a limit of 1,000,000 components, using CCMRG can help reduce the number. Note: the time required to run increases quadratically with the number of components. Adverbs: INNAME......Main file name (name). Standard defaults. INCLASS.....Main file name (class). Standard defaults. INSEQ.......Main file name (seq. #). 0 => highest INDISK......Disk drive # of image. 0 => any INVERS......Input extension file version #. OUTVERS.....Output extension file version #. 0=>make new BCOUNT......Beginning row number to be included . ECOUNT......Last row number included. 0 = highest. RADIUS......The radius in arcseconds within which to sum components. NO DEFAULT. CUTOFF......The minimum acceptable summed flux. If the value is negative then summed fluxes with magnitudes larger than ABS(CUTOFF) are accepted. ----------------------------------------------------------------