; COMAP_DO ;--------------------------------------------------------------- ;! MX adverbs not changed by COMAP ;# Task Imaging ;----------------------------------------------------------------------- ;; 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- COMAP LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC COMAP_DO: Coherence Mapping control logic options. DOTV * -1.0 16.0 >0 => display residual field DOINT Interactive setting of Boxes DOTKPL >0: Plot on Tek terminal DOPLT >0: Plot UVdata distributions DOPRT >0: Print plots DONEG Stop at negative clean comps DOGAUSS Convert C. comps to gaussian DODIV Divide uv-data by source map DOSCLP Clip uv-data after division DOPHS Coherence time average data DOZAP >0: Zap intermediate files VECRAT Vector/Scalar ratio limit FGSIGMA Sigma of UVdata to CLIP NOLDUV Num S-cals with input data. NVBPLT Antenna to include in VBPLT SCTYPE CALIB self-cal solution type SCSNR Minimum SNR for Self-Cal SCTIME Self-Cal maximum ave. time. CCFACT Negative clean comp. limit RMSFAC RMS progress tolerance ---------------------------------------------------------------- COMAP_DO Type: Adverbs to control Coherence-Mapping Use: COMAP_DO is the list of adverbs for which control the type of output and self-calibration methode used. DOTV......Display residuals on TV channel 1. > 0 => display the inner 512X512 of field number DOTV - 1. If true, you may stop the CLEANing with TV button D after each residual map is displayed. DOINT.....>0:Interactive setting of MX Clean Boxes after each deconvolution step. Also allows stoping COMAP. The user is requested to fiddle the TV then enter number of clean boxes to use for the next deconvolution. The user then inputs the location of the boxes with the tvcursor. DOTKPL....>0: Plots UVDATA and Solutions on on Tek terminal DOPLT.....>0: Plot UVdata amplitude distributions versus baseline and time. IFs are plotted separately. DOPRT.....>0: Print UVDATA and solution plots. DONEG.....>0: Stop at negative clean comps during clean. Avoids adding negative clean components to self- cal model and speeds COMAP. DOGAUSS...Convert Clean. comps to gaussian before dividing the UVDATA by the model. Smooths Model UVdata distribution. (Usually not used) DODIV.....0>: Divide uv-data by source map before finding the coherenece time. Removes source structure from problem of determining coherence times. DOSCLP....0>: Clip uv-data after division by model. Rejects visibilities which do not correspond to the model. Effects only gain solutions. Original data not modified. DOPHS.....Coherence time average data before determining the antenna gain solutions. Averaged data are not used for deconvolution. DOZAP.....>0: Zap intermediate files if self-cal improves images. VECRAT.....Limiting ratio of vector to scalar average of UVdata used to determine the coherence time. FGSIGMA....Number of sigma of UVdata to flag during coherence Mapping. Note that since RMS noise uses all data, a bad points will not be removed unless FGSIGMA is small (ie 2 to 4) NOLDUV.....Number of times to use original UV-data in self- Calibration loop. After NOLDUV self-calibrations of the data, the output of the previous Self-cal is used as input to the next self-calibration. NVBPLT.....Antenna Number to be included in VBPLT of visiblities with model. NVBPLT=0> no VBPLT. Only 3 baselines are plotted. Other antennas are REFANT and one of antennas 1, 2, 3, or 4. SCTYPE.....Self-calibration solution type used by CALIB. Types are least linear (SCTYPE='L1') and Least squares (SCTYPE=' ') CCFACT.....Limit of posivitive clean components to use relative to brightness of first negative clean component. (ie if CCFACT=2, then all clean components brighter than twice absolute value of the first negative clean component are used in CALIB solution.) RMSFAC.....Factor to allow slightly worse self calibration solutions to pass before exiting. (ie RMSFAC=1.2 means images can get 20% worse before COMAP will stop.) SCSNR......Minimum Signal to Noise ratio for which Self-Cal is performed. (Default=8) SCTIME.....Self-calibration maximum averaging time. (Default=15 Minutes) ----------------------------------------------------------------