; MULTI ;--------------------------------------------------------------- ;! Task to convert single-source to multi-source UV data ;# TASK CALIBRATION 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- MULTI LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC MULTI Task to convert single-source to multi-source UV data 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 #. SOURCES Source name (16 char. max.) (Def.: extract from header) APARM (1) CL time interval (min.) (Def.: 1 minute) ---------------------------------------------------------------- MULTI Task: This task will take an existing time-ordered UV dataset in single-source format and copy it as a new UV dataset in multi-source format, and create the required SU and CL tables. 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. SOURCES....Name of source (16 char. max.) Default is to extract the source name from the catalog header. APARM(1)...CL time interval (minutes). Default is 1 minute. ---------------------------------------------------------------- MULTI: Task to copy a UV database in single-source format to a UV database in multi-source format, with creation of the attendant SU and CL tables. Documentor: Kevin R. Lind This task is required in a limited number of circumstances, when the AIPS task to be run intrinsically requires a multi-source UV datbase, or (hopefully rarely) the single-source version is acting up. After running this routine, you should run INDXR to create an NX table. Any other tables are either already attached to the input database, and are copied over to the output database, or will be created at need in the AIPS package. In general, this will have to be run before running CLCAL, which applies the apriori antenna-based calibrations to the data. All fringe-fitting and self-calibration steps may be carried out in either format unless you are applying corrections obtained from a calibrator source to a weak source; in this case, you will have to complete the fringe-fitting before splitting the data into single-source datasets. A WARNING: This task was written rather quickly, in order to allow the continuation of continuum VLBI processing in AIPS. It should support polarization and subarrays, and at most two IFs. If this is not acceptable, please complain early so that I have plenty of time to get around to upgrading it! Also, the treatment of time intervals in the CL table is not as elegant as it could be; any errors in applying fringe-fitting or self-calibration should be reported IMMEDIATELY.