; UVNOU ;--------------------------------------------------------------- ;! flags uv samples near the U,V axes to reduce interference ;# TASK UV UTILITY ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- UVNOU LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC UVNOU Task which flags points close to the U = 0 INNAME Input UV file name (name) INCLASS Input UV file name (class) INSEQ 0.0 9999.0 Input UV file name (seq. #) INDISK 0.0 9.0 Input UV file disk unit # OUTNAME Output UV file name (name) OUTCLASS Output UV file name (class) OUTSEQ -1.0 9999.0 Output UV file name (seq. #) OUTDISK 0.0 9.0 Output UV file disk unit #. UVRANGE (1) Minimum U distance (2) Minimum V distance (wavelengths) ---------------------------------------------------------------- UVNOU Task: This task flags UV data which is less than UVRANGE(1) wavelengths from the U axis and UVRANG(2) wavelengths from the V axis. Since the fringe rate is 0 on the V axis (u = 0), the rejection by averaging of unwanted terrestrial signals due to interference, and other bad data, fails near U = 0. This task is very useful for removing that piece of the UV plane which might be corrupted. Contact Tim Cornwell or Juan Uson for any advice. 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. OUTNAME....Output UV file name (name). Standard defaults. OUTCLASS...Output UV file name (class). Standard defaults. OUTSEQ.....Output UV file name (seq. #). 0 => highest unique OUTDISK....Disk drive # of output UV file. 0 => highest with space for the file. UVRANGE....(1) Minimum u distance allowed (wavelengths) [ =0 => defaults to 10^20 wavelengths] (2) Minimum v distance allowed (wavelengths) [ =0 => defaults to 10^20 wavelengths] ie, all data within UVRANGE(1) of the U axis AND within UVRANGE(2) of the V axis will be flagged. ----------------------------------------------------------------