; SBCOR ;--------------------------------------------------------------- ;! Task to correct VLBA data for phase shift between USB & LSB ;# Task UV ;----------------------------------------------------------------------- ;; Copyright (C) 1995 ;; 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- SBCOR LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC SBCOR Task to correct VLBA data for 130 deg. phase shift 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 #. BCHAN 0.0 9999. Channel at which LSB begins ECHAN 0.0 9999. Channel at which LSB ends APARM Control info: 1: => phase-shift between sidebands (degrees), 0 => -130 degrees ANTENNAS Antennas to correct. ---------------------------------------------------------------- SBCOR Task: This task is designed to correct VLBI data recorded with VLBA record terminals for the phase shift that occurs between lower and upper sidebands. 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 w room BCHAN......Channel at which LSB begins - no default ECHAN......Channel at which LSB ends, 0=> last channel APARM......(1): The actual phase-offset between the lower and upper sidebands. If zero assumes the lower sideband is wrong by -130 degrees and will adjust the data accordingly. If non-zero will use the value given as the phase-offset. ANTENNAS...A list of all antennas which observed and recorded with a VLBA terminal. The baselines to these antennas will have the 130 degree phase shift inserted in the data.