# # 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} :vs03l {Your family name} :Piner {Your given name} :Glenn {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} :18-06-1999 {The name of the survey source that was observed} :J1626-29 {The name of the calibration source(s) observed} : 1622-253 {The year the experiment took place (e.g. 1998)} :1998 {The starting day number of the experiment} :53 {List the GRTs that observed} :Hart,Hobart,Shanghai {List the tracking stations that took part} :TZ {Which correlator was used to correlate the data? (Mitaka/Penticton/Socorro)} :Penticton {AIPS Version used (e.g 15OCT98)} :15OCT99 {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} : This dataset came as four separate files which I was unable to concatenate with DOCONCAT. There are thus 4 versions of most AIPS plots. All four files were combined into the same subarray using DBCON before exporting. Doing a straight fringe-fit found fringes only out to 00:00. Found more fringes by fringing ground data, applying ground corrections and averaging in frequency and time (using SPLIT and UVAVG) then searching for HALCA fringes. Found HALCA fringes out to ~1:00-1:30. Note that I usually do time and frequency averaging with SPLAT but that did not work on this data (dying with a signal 11 error). Suggested parameters for all AIPS tasks were used. CALIB was not run so the final SN and CL tables have non-zero phases in them. Imaging and model-fitting both went very well and produced good results. #--------------------------------------------------------------------------- # 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)} :n # 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)} :y {LISTR (optyp = 'SCAN') [LISTR.LIS] (yes/no)} :y {DTSUM (aparm = 0) [DTSUM_0.LIS] (yes/no)} :y {DTSUM (aparm = 1) [DTSUM_1.LIS] (yes/no)} :y {UVPLT (u vs v) [UVPLT_UV.PS] (yes/no)} :y {UVPLT ((u,v) distance vs time) [UVPLT_UVD.PS] (yes/no)} :y {UVPLT ((u,v) position angle vs time). [UVPLT_UVPA.PS] (yes/no)} :y {VPLOT antenna weights vs time (after adjustment) [WEIGHTS.PS] (yes/no)} :n {ACCOR SNPLT (amplitude), IF 1 [SN_ACCOR_1.PS] (yes/no)} :n {IF 2 [SN_ACCOR_2.PS] (yes/no)} :n {APCAL SNPLT (amplitude), IF 1 [SN_APCAL_1.PS] (yes/no)} :y {IF 2 [SN_APCAL_2.PS] (yes/no)} :y # 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)} :y {IF 2 [SN_CALIB_PHA_2] (yes/no)} :y {Delay: IF 1 [SN_CALIB_DEL_1] (yes/no)} :y {IF 2 [SN_CALIB_DEL_2] (yes/no)} :y {Rate: IF 1 [SN_CALIB_RAT_1] (yes/no)} :y {IF 2 [SN_CALIB_RAT_2] (yes/no)} :y {SNR: IF 1 [SN_CALIB_SNR_1] (yes/no)} :y {IF 2 [SN_CALIB_SNR_2] (yes/no)} :y {Post-calibration VPLOT (amp and phase, with channel averaging) IF 1 [VPLOT_AP_1.PS] (yes/no)} :y {IF 2 [VPLOT_AP_1.PS] (yes/no)} :y {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)} :y {IF 2 [POSSMnn_AP_2.PS] (yes/no)} :y {Output TASAV FITS file (containing all 'multisource' cal tables) [VSxxx__TASAV.FITS] (yes/no)} :y {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} : {Description} : #--------------------------------------------------------- #--------------------------------------------------------------------------- # 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} : ncount=4 doconcat = 0 digicor = -1 delcorr = -1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : could not concatenate the four files. The dates for the observations on day 054 loaded incorrectly, instead it has this part of the experiment on day 053. #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : cparm 0,0,0.25 infile 'SURVEY:INDXR.TXT' {Input CL} : {Input SN} : {Output SN} : {Output CL} :1 {Comments} :changed day 054 in INDXR.TXT to 053 (see FITLD comments) #--------------------------------------------------------- {Task} : ANTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} :had to change all day 054s in ANTAB.TXT to 053 (see FITLD comments). #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : solint=2 {Input CL} : {Input SN} : {Output SN} :1 {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : interpol '2pt' {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 3,4 gainver 3 opcode 'cloc' clcorprm 0 2000 0 0 0 0 1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} :apply delay offsets from corrlator summary #--------------------------------------------------------- {Task} : FRING {ADVERBs} : dofit = 1,2,3 docalib = 1 gainuse = 3 flagver = 1 refant = 3 solint = 5 aparm = 2,0,0,0,0,1,3,0 dparm = 0,2000,200,0,0 {Input CL} : {Input SN} : {Output SN} :2 {Output CL} : {Comments} :fringe ground only #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : interpol 'ambg' refant 3 {Input CL} :3 {Input SN} :2 {Output SN} : {Output CL} :4 {Comments} : #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} :4 {Input SN} : {Output SN} : {Output CL} :5 {Comments} : #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : antennas 4 gainver 5 opcode 'cloc' clcorprm 0 -200 0 0 0 0 1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} :apply estimated delay between Seshan and HALCA #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : docalib=1 gainuse=5 aparm=1,0.8,0 npoints 16 chinc 16 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : apply ground solutions and average in frequency from 256 channels to 16 channels. (NOTE: SPLAT does not seem to work with this data, dies with signal 11 error.) #--------------------------------------------------------- {Task} : UVAVG {ADVERBs} : yinc 4 zinc 0.8 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : time average to 4 seconds #--------------------------------------------------------- {Task} : FRING {ADVERBs} : docalib = 0 refant = 3 solint = 5 aparm = 2,0,0,0,0,1,1,0 dparm = 0,500,100,4,0 {Input CL} : {Input SN} : {Output SN} :1 {Output CL} : {Comments} :search for HALCA solutions in time and frequency averaged file. found good fringes out to ~1:00-1:30 #--------------------------------------------------------- {Task} : MULTI {ADVERBs} : aparm 0 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} :change back to multi-source format to make CL table #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} :2 {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : interpol 'ambg' refant 3 {Input CL} :1 {Input SN} :2 {Output SN} : {Output CL} :2 {Comments} : #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : cparm 0 infile 'SURVEY:INDXR.TXT' {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} :reindex file so it can be split again #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : docalib=1 gainuse=2 aparm=2,4,0 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : DBCON {ADVERBs} : dopos 0 doarray 1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : outfile = 'SURVEY:J1626-29_PINER_AIPS.FITS' {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------------------------- # Section 6 : Difmap data reduction notes #--------------------------------------------------------------------------- {Phase Selfcal applied? (yes/no)} :y {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} : Cleaned and phase selfcaled using uniform weighting, then switched to uvweight 0,-1 and a larger mapsize and continued cleaning and selfcaling to clean the extended structure. The model was then cleared and the selfcaled data re-cleaned using both uniform and natural weighting. The final image is displayed with uniform weighting. A HALCA weight of 20 was used for the model fitting. #--------------------------------------------------------------------------- # Do not delete or alter anything past this line {VSOP Survey Checklist and Worksheet version} : 0.3 #---------------------------------------------------------------------------