# # 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} : VS04i {Your family name} : Scott {Your given name} : William {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 04-10-1999 {The name of the survey source that was observed} : J2229-08 {The name of the calibration source(s) observed} : {The year the experiment took place (e.g. 1998)} : 1997 {The starting day number of the experiment} : 331 {List the GRTs that observed} : Ka, Sh, Mp, Ho, Hh {List the tracking stations that took part} : RZ, TZ {Which correlator was used to correlate the data? (Mitaka/Penticton/Socorro)} : Penticton {AIPS Version used (e.g 15OCT98)} : 15APR98 {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)} : n {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)} : 0 {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 = VS04I.FITLD #--------------------------------------------------------- #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file name = VS04I.FITLD, Output file name = VS04I.UVSRT #--------------------------------------------------------- #--------------------------------------------------------- {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} : TBOUT {ADVERBs} : INEXT = AN {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Changed entries in AN(1) for MNTSTA, ie: VSOP_SC from 3 to 2, Hobart from 2 to 0 Hart from 1 to 0. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBIN {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Read in new AN table #--------------------------------------------------------- #--------------------------------------------------------- {Task} : IBLED {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Edits stored in FG(1). There was an INDEF value for timestamp 0:10:28:32 on the Se-Ho baseline (IF 1). After flagging this value out with UVFLG, IBLED had no more problems. #--------------------------------------------------------- #--------------------------------------------------------- {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:VS04I_CAL.DAT'. Both Tsys and gain curves were available for Halca, Mo, Se, and Hh. For Ho, had Tsys measurements, but no gain curve or DPFU. No information was initially available for Ka, so nominal values were used. After AIPS processing and loading into DIFMAP, it became apparent the Ka values were much too low. Comparison of visibility amplitudes at three "close to crossing" points in the UV plane indicated that the Ka values should be multiplied by 5, 7.1, and 13.3. I decided to use an intermediate value of 8.4, which was the same multiplicative factor used on the Ka gains in experiment VS05s. Any additional corrections to the Ka gains will be made with amplitude self-calibration. #--------------------------------------------------------- #--------------------------------------------------------- {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 = AMBG REFANT 4 (Mop) {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} : Correction for Van Vleck normalization. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=3 OPCODE=GAIN CLCORPRM=8.4 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : Correction for Ka (see ANTAB above). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=1 (Hart) OPCODE=SBDL CLCORPRM=-224.2,-224.2 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=2 (Hobart) OPCODE=SBDL CLCORPRM=1203.3,1203.3 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=3 (Kashima) OPCODE=SBDL CLCORPRM=-16.7,-16.7 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=5 (Shanghai) OPCODE=SBDL CLCORPRM=1651.3,1651.3 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=6 (Halca) OPCODE=SBDL CLCORPRM=316.4,316.4 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=6 (Halca) OPCODE=SBDL CLCORPRM=1400,1400 GAINVER=3 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : It turns out that the average delay of 316.4 for Halca was a poor offset. Fringes were previously found for Halca at around delay solutions of 1700ns (for 2 hours between about 5:30 and 7:30). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : APARM(1)=2 APARM(7)=3 (SNR=3) APARM(9)=1 DPARM(1)=1 (no baseline stacking) DPARM(2)=400 (400ns delay window) DPARM(3)=300 (300mHz rate window) DPARM(4)=0.5 (0.5 sec integration time) DPARM(6)=1 (don't average in frequency) BCHAN 0, ECHAN 0 SEARCH 2,5,3 REFANT 4 (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 DOCALIB 1, GAINUSE 3 {Input CL} : 3 {Input SN} : {Output SN} : 2 {Output CL} : {Comments} : Got good fringes. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 2 {Output SN} : 3 {Output CL} : {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALI' INTERPOL = 'AMBG' SMOTYPE = 'VLBI' REFANT 4 {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=2 OPCODE=GAIN CLCORPRM=0.53 GAINVER=4 {Input CL} : 4 {Input SN} : {Output SN} : {Output CL} : 4 {Comments} : Had assumed that the "tsys" values from Ho were truly "tsys" values. Instead, they are only proportional. From DIFMAP, gscale corrections were about 0.53. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=0 OPCODE=GAIN CLCORPRM=1.45 GAINVER=6 {Input CL} : 4 {Input SN} : {Output SN} : {Output CL} : 4 {Comments} : Based upon AT light curves and PLS data, it looks like all visibilities are low by about a factor of 2.1. So, multiply all antenna gains by (2.1)**0.5. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TASAV {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS04I.FIXWT, Output file: VS04I.TABLES #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : SOURCES 'J2229-08' BCHAN 0, ECHAN 0 DOCALIB 1, GAINUSE 4 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: VS04I.FIXWT, Output file: J2229-08.FITS #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS04I.FITS, Output file: J2229-08.FITS #--------------------------------------------------------- #------------------------------------------------------------------------- # Section 6 : Difmap data reduction notes #------------------------------------------------------------------------- {Phase Selfcal applied? (yes/no)} : yes {Global Amplitude Selfcal applied? (yes/no)} : n {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} : Cleaning/phase self-cal was carried out with a solution interval of 10 minutes down to 5 minutes. Gscale corrections were: IF 1: HARTRAO 1.06 HOBART 0.87 KASHIMA 1.07 MOP 0.90 SESHAN25 1.06 VSOP_SC 1.06 IF2: HARTRAO 1.11 HOBART 0.88 KASHIMA 1.00* MOP 0.97 SESHAN25 1.00* VSOP_SC 1.13 Final map has a 0.45Jy/beam core, and appears to be slightly resolved out, with clean components extending along a SE-NW line near the core. #------------------------------------------------------------------------- # Do not delete or alter anything past this line {VSOP Survey Checklist and Worksheet version} : 0.3 #-------------------------------------------------------------------------