# # 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} : VS06m {Your family name} : Scott {Your given name} : William {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 26-09-2000 {The name of the survey source that was observed} : J1939-15 {The name of the calibration source(s) observed} : 1958-179 {The year the experiment took place (e.g. 1998)} : 1998 {The starting day number of the experiment} : 203 {List the GRTs that observed} : Hh, Ho, Se {List the tracking stations that took part} : GZ, 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} : Note: This experiment was originally analyzed March 08/1999! Overall amplitudes seemed lowish (0.5 to 0.8 Jy). Most other observations (PLS etc) pegged the zerospacing flux at about 1.5 Jy. However, PMN gives a flux of 0.8 in 1994, so source could just be variable. There was no AT light curve info. Calibrator does not help, since from AT light curves it appeared to be highly variable. #--------------------------------------------------------------------------- # 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)} : 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)} : no {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)} : 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. #--------------------------------------------------------------------------- #------------------------------------------------------------------------- # 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 = VS06M.FITLD #--------------------------------------------------------- #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file name = VS06M.FITLD, Output file name = VS06M.UVSRT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FIXWT {ADVERBs} : IF=1 CHAN=100 XINC=10 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : CPARM(1)=3 CPARM(3)=0.25 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Created NX(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBOUT {ADVERBs} : INEXT = 'AN' {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBIN {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Changed MNTSTA entries in the AN table. Changed Halca from 3 to 2, and changed all other antennas to 0. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : IBLED {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : created FG(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : ANTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Nominal values were used for the DPFU of Ho (0.4). For Ho, the Tsys values seemed corrupted, so a nominal value of 155K was used. For Halca, a nominal Tsys value of 95K was used. Output sent to TY(1) and GC(1). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : {Input CL} : {Input SN} : 1 {Output SN} : {Output CL} : {Comments} : Input: Ty(1) + GC(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = 'AMBG' {Input CL} : 1 {Input SN} : 1 {Output SN} : {Output CL} : 2 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : DOCALIB 1 GAINUSE 1 REFANT 3 (Ho) SEARCH 2,4 SOLINT 2 TIMER 0 19 0 0 0 19 30 0 APARM(1)=2 APARM(7)=4 (SNR=4) APARM(9)=1 DPARM(1)=1 (no baseline stacking) DPARM(2)=1000 (1000ns 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 30, ECHAN 220 CALSOUR='1958-179' {Input CL} : 2 {Input SN} : {Output SN} : 2 {Output CL} : {Comments} : Got good solutions for all GRTs..Hh and Se. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBOUT {ADVERBs} : INEXT = 'SN' INVER=2 {Input CL} : {Input SN} : 2 {Output SN} : {Output CL} : {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBIN {ADVERBs} : {Input CL} : {Input SN} : 2 {Output SN} : {Output CL} : {Comments} : Removed the rate solutions and made sure there was only one solution for the relevant antennas (Ho, Se, Hh). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = '2PT' Smotype = VLBI {Input CL} : 2 {Input SN} : 2 {Output SN} : {Output CL} : 3 {Comments} : SN(2) was accidentally deleted after being applied to CL(3) and not regenerated. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : As per previous FRING, except: SOLINT 4 DOCALIB 1 GAINUSE 3 DPARM(7) 3 CALSOUR='' {Input CL} : 3 {Input SN} : {Output SN} : 3 {Output CL} : {Comments} : Got good solutions. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 3 {Output SN} : 4 {Output CL} : {Comments} : Editted inconsistent delays. Rates were not editted, since it was unclear what rates were good/bad solutions. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALI' INTERPOL = '2PT' SMOTYPE = '' REFANT 3 {Input CL} : 3 {Input SN} : 4 {Output SN} : {Output CL} : 4 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 4 {Input SN} : {Output SN} : {Output CL} : 5 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE 'GAIN' CLCORPRM 0.9055 {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : 5 {Comments} : Correction for Van-Vleck Renormalization #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE 'GAIN' ANTENNA=1, CLCORPRM=1.07, then ANTENNA=2, CLCORPRM=0.88, then ANTENNA=3, CLCORPRM=1.21, then ANTENNA=4, CLCORPRM=0.82 {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : 5 {Comments} : Since I had to go back into AIPS to apply the Van-Vleck correction anyways, I also applied the GSCALE corrections that Difmap generated from the earlier analysis. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : SOURCES 'J1939-15' BCHAN 0, ECHAN 0 DOCALIB 1, GAINUSE 5 APARM(1)=2 (average each IF separately) APARM(2)=0.5 APARM(4)=1 {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS06M.UVSRT, Output file: J1939-15.FITS #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: J1939-15.FITS, Output file: J1939-15.FITS #--------------------------------------------------------- #------------------------------------------------------------------------- # 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} : HALCA, Hh, Ho, Se {Amplitude correction factors} : 0.97, 0.80, 1.10, 0.74 #------------------------------------------------------------------------- # Section 7 : 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} : No problems cleaning out central component, but not much after that. Tried gscale, but all the corrections were less than 5 percent except for Se, IF2 (was 10 percent). Gscale also flagged out about half the data, so I decided it was not worth it, and didn't use the gscale corrections. Final image was basically unresolved, with a 0.416 Jy/beam core. # 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 #-------------------------------------------------------------------------