# # Template Checklist and Worksheet for reduction of VSOP Survey data. # (http://halca.vsop.isas.ac.jp/survey/template_checklist.txt) # # Version 0.3 - J. Lovell 14-Apr-1999 # # NOTE: Copy this file to your data reduction outputs directory (e.g # /something/vs05a_jones) and name it "checklist.txt" # # Comments are given on lines beginning with a # and questions are # enclosed in {}'s. # Please enter responses after the colons. # Multiple-line responses are OK. # Yes/No questions may be answered with "yes", "no", "Y", "N", "y" or "n" # An example of a completed Checklist is given in # http://halca.vsop.isas.ac.jp/survey/checklist_eg.txt # # #--------------------------------------------------------------------------- # Section 1 : General Information #--------------------------------------------------------------------------- {Experiment code} : VS03m {Your family name} : Scott {Your given name} : William {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 16-06-1999 {The name of the survey source that was observed} : J1507-16 {The name of the calibration source(s) observed} : 1334-127 {The year the experiment took place (e.g. 1998)} : 1998 {The starting day number of the experiment} : 100 {List the GRTs that observed} : Ud, Mp, Hh {List the tracking stations that took part} : NZ, TZ {Which correlator was used to correlate the data? (Mitaka/Penticton/Socorro)} : Penticton {AIPS Version used (e.g 15OCT98)} : 15APR99 {Difmap Version used (e.g 2.3c)} : 2.3c {Was vsop_difmap used? (yes/no)} : y {Abstract. Write a brief summary of the data reduction and its outcomes} : #--------------------------------------------------------------------------- # Section 2 : Pre-AIPS Checklist #--------------------------------------------------------------------------- {PI letter retrieved (yes/no)} : y {Data quality reports and plots retrieved? (yes/no)} : y {Pre-launch 5GHz survey data retrieved? (yes/no)} : y {Light-curve data retrieved? (yes/no)} : y # Input files for INDXR, ANTAB and UVFLG {Has a INDXR input file (INDXR.TXT) been created? (yes/no)} : y {Has a ANTAB input file (ANTAB.TXT) been created? (yes/no)} : y {Has a UVFLG input file (UVFLG.TXT) been created? (yes/no)} : n {Any comments on Pre-AIPS file preparation?} : #--------------------------------------------------------------------------- # Section 3 : AIPS Output File Checklist # # Names of expected output file names are contained in square brackets. #--------------------------------------------------------------------------- {PRTAN [PRTAN.LIS] (yes/no)} : yes {LISTR (optyp = 'SCAN') [LISTR.LIS] (yes/no)} : yes {DTSUM (aparm = 0) [DTSUM_0.LIS] (yes/no)} : yes {DTSUM (aparm = 1) [DTSUM_1.LIS] (yes/no)} : yes {UVPLT (u vs v) [UVPLT_UV.PS] (yes/no)} : yes {UVPLT ((u,v) distance vs time) [UVPLT_UVD.PS] (yes/no)} : yes {UVPLT ((u,v) position angle vs time). [UVPLT_UVPA.PS] (yes/no)} : yes {VPLOT antenna weights vs time (after adjustment) [WEIGHTS.PS] (yes/no)} : yes {ACCOR SNPLT (amplitude), IF 1 [SN_ACCOR_1.PS] (yes/no)} : no {IF 2 [SN_ACCOR_2.PS] (yes/no)} : no {APCAL SNPLT (amplitude), IF 1 [SN_APCAL_1.PS] (yes/no)} : yes {IF 2 [SN_APCAL_2.PS] (yes/no)} : yes # FRING SNPLT (delay, rate, SNR), as many as necessary to document the # clear discovery of fringes at all antennas, numbered with "nn" for # both IFs. Do NOT include the final SN table as it is plotted later. # # Format is SN_FRINGnn_DEL_i.PS, SN_FRINGnn_RAT_i.PS, # SN_FRINGnn_SNR_i.PS for delay, rate and SNR plots respectively, # where "i" is the IF number (1 or 2). {Number of times preliminary FRING solutions were plotted (i.e maximum value of nn)} : 1 {Post-FRING CALIB SNPLT, Phase: IF 1 [SN_CALIB_PHA_1] (yes/no)} : yes {IF 2 [SN_CALIB_PHA_2] (yes/no)} : yes {Delay: IF 1 [SN_CALIB_DEL_1] (yes/no)} : yes {IF 2 [SN_CALIB_DEL_2] (yes/no)} : yes {Rate: IF 1 [SN_CALIB_RAT_1] (yes/no)} : yes {IF 2 [SN_CALIB_RAT_2] (yes/no)} : yes {SNR: IF 1 [SN_CALIB_SNR_1] (yes/no)} : yes {IF 2 [SN_CALIB_SNR_2] (yes/no)} : yes {Post-calibration VPLOT (amp and phase, with channel averaging) IF 1 [VPLOT_AP_1.PS] (yes/no)} : yes {IF 2 [VPLOT_AP_1.PS] (yes/no)} : yes {Post-calibration POSSM (amplitude and phase, at least one 5 to 10 min integration spectrum per tracking pass, indexed with nn = 01, 02, 03, ...), IF 1 [POSSMnn_AP_1.PS] (yes/no)} : yes {IF 2 [POSSMnn_AP_2.PS] (yes/no)} : yes {Output TASAV FITS file (containing all 'multisource' cal tables) [VSxxx__TASAV.FITS] (yes/no)} : yes {Calibrated and spectrally averaged FITS data files (one for each source), [__AIPS.FITS] (yes/no)} : y #--------------------------------------------------------------------------- # Section 4 : Supplementary files # # Were any files created, other than those listed, to document the data # reduction? If so, please list them below using as many (File, Description) # groups as required. #--------------------------------------------------------------------------- #--------------------------------------------------------- {File} : image.ps.gz {Description} : The final Difmap image (gzipped). #--------------------------------------------------------- #------------------------------------------------------------------------- # Section 5 : AIPS data-reduction notes # # The format is as follows: # # Task : the name of the task that is run or other operation performed # ADVERBs : a list of the relevant non-default adverbs # Input CL : the input calibration table used (if any) in running the task # Input SN : the SN table that was used (if any) # Output SN : the SN table produced (if any) # Output CL : the CL table produced or modified (if any) # Comments: any comments on the results of the operation # # Use as many of the (Task, ADVERBs, Comments, Input CL, Input SN, # Output SN, Output CL) groups as required. #------------------------------------------------------------------------- #--------------------------------------------------------- {Task} : FITLD {ADVERBs} : DIGICOR=DELCOR=-1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Output file name = VS03M.FITLD #--------------------------------------------------------- #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file name = VS03M.FITLD, Output file name = VS03M.UVSRT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FIXWT {ADVERBs} : CPARM(1)=3 CPARM(3)=0.25 = Cl table time interval {Input CL} : {Input SN} : {Output SN} : {Output CL} : 1 {Comments} : Input file name = VS03M.UVSRT, Output file name = VS03M.FIXWT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Created NX(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : OBTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not Used #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TABPUT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Changed entries in AN(1) for MNTSTA, ie: VSOP_SC from 3 to 2, Hart from 1 to 0. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : IBLED {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Edits stored in FG(1). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : ACCOR {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not Used #--------------------------------------------------------- #--------------------------------------------------------- {Task} : ANTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : INFILE='CAL:VS03M_CAL.DAT'. Output sent to TY(1) and GC(1). Nominal values were used for Mp (DPFU=0.1, Tsys=34K). For Halca, used a nominal Tsys' values of 95K, 98K for IF1, IF2. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : {Input CL} : {Input SN} : 1 {Output SN} : {Output CL} : {Comments} : Input: Ty(1) + GC(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNSMO {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Did not use #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALI INTERPOL = 2PT REFANT 2 (Mopra) {Input CL} : 1 {Input SN} : 1 {Output SN} : {Output CL} : 2 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 2 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=0 OPCODE=GAIN CLCORPRM=0.9055 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE='SBDL' ANTENNAS = 1 (Hart) CLCORPRM= 164, 164 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE='SBDL' ANTENNAS = 3 (Halca) CLCORPRM= 2082, 2082 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE='SBDL' ANTENNAS = 4 (Usuda) CLCORPRM= 1834, 1834 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : APARM(1)=2 APARM(7)=3 (SNR=3) APARM(9)=1 DPARM(1)=1 (no baseline stacking) DPARM(2)=500 (500ns delay window) DPARM(3)=100 (100mHz rate window) DPARM(4)=0.5 (0.5 sec integration time) DPARM(6)=1 (don't average in frequency) BCHAN 0, ECHAN 0 SEARCH 4,1 REFANT 2 (Mopra) {Input CL} : 3 {Input SN} : {Output SN} : 2 {Output CL} : {Comments} : These are the standard parameters I used (unless otherwise specified). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=5 TIMER 0 18 0 0 0 19 0 0 DPARM(5)=1 only do FFT solution DOCALIB 1, GAINUSE 3 {Input CL} : 3 {Input SN} : {Output SN} : 2 {Output CL} : {Comments} : Got good solutions (all SNR's were greater than 10, and all abs(delay)s were less than 50ns). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=5 DPARM(2)=300 DOCALIB 1, GAINUSE 3 {Input CL} : 3 {Input SN} : {Output SN} : 3 {Output CL} : {Comments} : Solutions look very good! #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 3 {Output SN} : 4 {Output CL} : {Comments} : Very little editting was required. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALI' INTERPOL = '2PT' REFANT 2 {Input CL} : 3 {Input SN} : 3 {Output SN} : {Output CL} : 4 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 4 {Input SN} : {Output SN} : {Output CL} : 5 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=see comments below OPCODE=GAIN CLCORPRM=see comments below GAINVER=5 {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : 5 {Comments} : Modifed all antennas by the corrections found via gscale in Difmap, ie: Gscale corrections applied with CLCOR: IF 1: HARTRAO 0.95 USUDA 1.25 MOPRA 0.89 VSOP_SC 0.87. IF 2: HARTRAO 0.91 USUDA 1.24 MOPRA 0.94 VSOP_SC 0.81. See Difmap comments below for the reason for doing this. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CALIB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not used. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TASAV {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS03M.FIXWT, Output file: VS03M.TABLES #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : SOURCES 'J1507-16' BCHAN 0, ECHAN 0 DOCALIB 1, GAINUSE 5 APARM(1)=2 (average each IF separately) APARM(2)=0.5 APARM(4)=1 {Input CL} : 4 {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS03M.FIXWT, Output file: J1507-16.FITS #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS03M.FITS, Output file: FITS:J1507-16.FITS #--------------------------------------------------------- #------------------------------------------------------------------------- # Section 6 : Difmap data reduction notes #------------------------------------------------------------------------- {Phase Selfcal applied? (yes/no)} : y {Global Amplitude Selfcal applied? (yes/no)} : y {Amplitude Selfcal applied on non-global timescales? (yes/no)} : n {Modelfit made and saved using the vs_final_mod macro? (yes/no)} : y {Image made and saved using the vs_final_img macro? (yes/no)} : y {Comments on Difmap processing. Include the global amplitude offsets that were applied if gscal was used} : Ran uvaver 30,true (averaged over 30 seconds and redo the weights). Visibilities for Usuda with Hh and Mp looked low..(by about 50 percent???). There was one component to the south that I believe was probably real. It did not correspond to any sidelobe of the dirty beam, and would be consistent with the morphology from other VLBI images. I added a clean box around this component. I tried to run amp self-cal,but unfortunately, there was only about five minutes of data with amplitude closure, so all the data except for that five minutes was flagged! To get around this, took the gscale corrections, and applied them to the data with CLCOR in AIPS (see above). Then ran Difmap without amp self-cal. Final image: Core was elongated in the N/S direction, and there was an additional component to the south. Peak core amplitude was 423 mJy. Because of the elongated structure of the core, an elliptical Gaussian model fit was required to obtain a reasonable model fit (the circular Gaussian collapsed to a point source). #------------------------------------------------------------------------- # Do not delete or alter anything past this line {VSOP Survey Checklist and Worksheet version} : 0.3 #-------------------------------------------------------------------------