# # Template Checklist and Worksheet for reduction of VSOP Survey data. # (http://halca.vsop.isas.ac.jp/survey/template_checklist.txt) # # Version 0.4 - J. Lovell 6-October-1999 # - added amplitude correction factor entries # 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} : VS04L {Your family name} : Dodson {Your given name} : Richard {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 15-11-1999 {The name of the survey source that was observed} : J0231+1322 {The name of the calibration source(s) observed} : J0231+1322 {The year the experiment took place (e.g. 1998)} : 1999 {The starting day number of the experiment} : 225 {List the GRTs that observed} : HOBbit {List the tracking stations that took part} : NZ {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)} : yes {Abstract. Write a brief summary of the data reduction and its outcomes} : Only Hobart and VSOP observed. DQA showed no fringes, but ~ 2600 was the modal value. This data set is possibly a perfect example for weak fringes. A brief conclusion; KRING & FRING are very poor at finding these very weak fringes. BLING seemed just a little better. The Russians ASL package solved it, I am writing this up as a paper. Following the normal procedures this would have failed! #--------------------------------------------------------------------------- # Section 2 : Pre-AIPS Checklist #--------------------------------------------------------------------------- {PI letter retrieved (yes/no)} : no {Data quality reports and plots retrieved? (yes/no)} : yes {Pre-launch 5GHz survey data retrieved? (yes/no)} : yes {Light-curve data retrieved? (yes/no)} : yes # Input files for INDXR, ANTAB and UVFLG {Has a INDXR input file (INDXR.TXT) been created? (yes/no)} : no {Has a ANTAB input file (ANTAB.TXT) been created? (yes/no)} : yes {Has a UVFLG input file (UVFLG.TXT) been created? (yes/no)} : no {Any comments on Pre-AIPS file preparation?} : logs2keyin.pl used #--------------------------------------------------------------------------- # Section 3 : AIPS Output File Checklist # # Names of expected output file names are contained in square brackets. #--------------------------------------------------------------------------- {PRTAN [PRTAN.LIS] (yes/no)} : n {LISTR (optyp = 'SCAN') [LISTR.LIS] (yes/no)} : n {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)} : n {UVPLT ((u,v) distance vs time) [UVPLT_UVD.PS] (yes/no)} : n {UVPLT ((u,v) position angle vs time). [UVPLT_UVPA.PS] (yes/no)} : n {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)} : n {IF 2 [SN_APCAL_2.PS] (yes/no)} : n # 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)} : n {IF 2 [SN_CALIB_PHA_2] (yes/no)} : n {Delay: IF 1 [SN_CALIB_DEL_1] (yes/no)} : n {IF 2 [SN_CALIB_DEL_2] (yes/no)} : n {Rate: IF 1 [SN_CALIB_RAT_1] (yes/no)} : n {IF 2 [SN_CALIB_RAT_2] (yes/no)} : n {SNR: IF 1 [SN_CALIB_SNR_1] (yes/no)} : n {IF 2 [SN_CALIB_SNR_2] (yes/no)} : n {Post-calibration VPLOT (amp and phase, with channel averaging) IF 1 [VPLOT_AP_1.PS] (yes/no)} : n {IF 2 [VPLOT_AP_1.PS] (yes/no)} : n {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 [POSSM01.PS] (yes/no)} : n {IF 2 [POSSM02.PS] (yes/no)} : n {Output TASAV FITS file (containing all 'multisource' cal tables) [VS04L_DODSON_TASAV.FITS] (yes/no)} : yes {Calibrated and spectrally averaged FITS data files (one for each source), [J0231+1322_DODSON_AIPS.FITS] (yes/no)} : yes #--------------------------------------------------------------------------- # 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} : Delay_Hist.ps {Description} : finder for the solution #--------------------------------------------------------- {File} : Delay_Rate.ps {Description} : finder for the solution #--------------------------------------------------------- {File} : Delay_Time.ps {Description} : finder for the solution #--------------------------------------------------------- {File} : difmap_vplot.ps {Description} : data and model #--------------------------------------------------------- #--------------------------------------------------------------------------- # 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. #--------------------------------------------------------------------------- AIPS failed to find the fringes, even when told exactly were they are. ASL succeeded. Shame ASL is a pig to use (even in comparision to AIPS!). A perfect test data set? #--------------------------------------------------------- {Task} : FITLD {ADVERBs} : douvcomp = 1; clint = 0.25 ; digicor = -1; delcorr = -1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : 1 {Comments} : Created VS04L.MULTI.1 #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : VS04L.MSORT.1 #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : cparm = 0, 0, 0.25 {Input CL} : {Input SN} : {Output SN} : {Output CL} : 1 {Comments} : #--------------------------------------------------------- {Task} : ANTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : logs2keyin.pl used for Tsys #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : 1 {Output CL} : {Comments} : #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : refant=1;opcode='calp';smotyp='ampl';interpol='box';intp=10; {Input CL} : 1 {Input SN} : 1 {Output SN} : {Output CL} : 2 {Comments} : Amplitude calibration and smoothing applied. #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 2 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : Copy CL tables #--------------------------------------------------------- {Task} : KRING {ADVERBs} : cparm 0,0,2,400,200,-1,-1,-1,-1,0;refant=1; bparm(5)=0.5;solint 0;SOLTYPE 'NOLS' {Input CL} : 3 {Input SN} : {Output SN} : 2 {Output CL} : {Comments} : No LSS as there is only one. #--------------------------------------------------------- {Task} : SPLAT_KRING_CLCOR {ADVERBs} : 1 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Search of 20msec of fringe space 400 nsecs at a time #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : opcode='sbdl'; antennas = 2,0; clcorprm=2550,2550,0 {Input CL} : 3 {Input SN} : {Output SN} : {Output CL} : 3 {Comments} : emotional selection (from modal value in dqa1). See delay_dqa1.ps #--------------------------------------------------------- {Task} : FRINGKRING {ADVERBs} : dparm 200,50;refant=1; bparm(5)=0.5;solint 10; {Input CL} : 3 {Input SN} : {Output SN} : 3,4 {Output CL} : {Comments} : Many cycles of deep searches around the "correct" solution. I tried CLCOR SBLD=2550 (CL#2) values from DQA with rates and without (CL#3 & CL#4). Long integrations and short, profane words and pleads where tried. All without success. #Can't get kring to work # edit DQA1 to get the values in 47.3 # set them to 2550,2550,0 47.2 # no good solutions. 5,4 with 5,10 min iwth 3 # 6 with 10 min iwth 2 # SN2 - 2 points 3 many pots 4 rate=0 5 dparm(3)=50 (with CL4) #6 dparm(3)=100 with CL3 7 with CL4(zero rate) # 8 Kring with cl3 200/100 search 9 solint 300 50/10 10 solint 1200 #11 solint 300 10.100 (rate wrong?) 12 cl4 13 10.200 #--------------------------------------------------------- {Task} : BLINGBLAPP {ADVERBs} : aparm 0.4 0 0 0.1 1 0; stokes 'll'; timer 0 0 0 0 0 21 20 0; refant 1; dparm 0 0 2550 200 5 50 0;docal -1; {Input CL} : {Input SN} : {Output SN} : 14 {Output CL} : {Comments} : Output BS : 1 Better? No indication of signal to noise, but there was agreement between IFs at times. #--------------------------------------------------------------------------- {Task} : TBIN {ADVERBs} : infile='SNDIRECTORY:SNTABLES/SNTABLE_VS04L {Input CL} : {Input SN} : {Output SN} : 5 {Output CL} : {Comments} : Defeated I returned to the beginning, and used that #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : refant=1;opcode='calp';smotyp='ampl';interpol='box';intp=10; {Input CL} : 2 {Input SN} : 5 {Output SN} : {Output CL} : 4 {Comments} : Apply the fringe solutions from penticton DQA #--------------------------------------------------------------------------- # Section 6 : Antenna-based amplitude corrections #--------------------------------------------------------------------------- # Corrections applied with CLCOR in AIPS to correct for antenna-based amplitude # errors. # Separate antenna names and correction factors by commas or spaces. # e.g # # {Antenna name list} : HALCA, HO, HH, MP, KA # {Amplitude correction factors} : 1.0, 1.6, 1.3, 1.0, 1.0 # {Antenna name list} : {Amplitude correction factors} : #--------------------------------------------------------------------------- # Section 7 : Difmap data reduction notes #--------------------------------------------------------------------------- {Phase Selfcal applied? (yes/no)} : n {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)} : n {Image made and saved using the vs_final_img macro? (yes/no)} : n {Comments on Difmap processing. Include the global amplitude offsets that were applied if gscal was used} : A single baseline was obtained; flux was ~0.2 Jy. A one minute average of the data produced resonable phases. # If GSCAL was used, report amplitude correction factors here. If GSCAL # was used more than once, report the CUMULATIVE factor here (e.g if gscal # reported a gain factor of 1.11 for HALCA the first time and 0.95 the # second time, the overall gain correction is 1.11 * 0.95 = 1.05. # Separate antenna names and correction factors by commas or spaces. # e.g # # {Antenna name list} : HALCA, HO, HH, MP, KA # {Amplitude correction factors} : 1.0, 1.6, 1.3, 1.0, 1.0 # {Antenna name list} : {Amplitude correction factors} : #--------------------------------------------------------------------------- # Do not delete or alter anything past this line {VSOP Survey Checklist and Worksheet version} : 0.4 #---------------------------------------------------------------------------