; BASELINE ;--------------------------------------------------------------- ;! specifies which antenna pairs are to be selected/deselected ;# ADVERB CALIBRATION ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 1998, 2007, 2012 ;; 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 ;----------------------------------------------------------------------- BASELINE LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- BASELINE Type: Adverb (REAL(50)) Use: Standard data selection adverb, used in conjunction with ANTENNAS to specify baseline selection. Null Value: 0 All null value means use all antennas. BASELINE is always used with ANTENNAS. In that case, a baseline between antenna I and J is selected (or deselected if any of ANTENNAS or BASELINE are negative) if # in ANTE # in BASE Selected or de-selected if 0 0 always >0 0 (I in ANTE) .OR. (J in ANTE) 0 >0 (I in BASE) .OR. (J in BASE) >0 >0 ((I in ANTE) .AND. (J in BASE)) .OR. ((I in BASE) .AND. (J in ANTE)) Verbs VLA, EVLA, VLBA, and HSA may be used to set values into BASELINE (or any other adverb array). In this case, the equals sign is required, e.g., ANTENNAS = EVLA BASELINE = VLA to process all baselines between new EVLA and old VLA antennas. Be careful of INNAME et al., SUBARRAY, and DOINVERS which control what these verbs actually do. Examples: 1. BASELINE=0; ANTENNAS=0 include everything 2. BASELINE=0; ANTENNAS=1,2,3,4,5,6 include only baselines between antennas 1 through 6 3. BASELINE=0; ANTENNAS=1,2,-3,4,5,6 include only baselines between antennas 7 through N 4. BASELINE=0; ANTENNAS = 11,-19,27 exclude any baseline involving antennas 11, 19, and/or 27 thus, exclude 1-11, 7-19, 11-19, 26-27, etc. etc. 5. BASELINE=1,2,7; ANTENNAS=3,4,5 include baselines 1-3, 1-4, 1-5, 2-3, 2-4, 2-5, 3-7, 4-7, 5-7 only 6. BASELINE=1,-2,7; ANTENNAS=3,4,5 include all baselines except 1-3, 1-4, 1-5, 2-3, 2-4, 2-5, 3-7, 4-7, 5-7 7. BASELINE=-10; ANTENNAS=-10 exclude baseline 10-10 (autocorrelation), include all other baselines including those to antenna 10. ----------------------------------------------------------------