# # 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} : VS04z {Your family name} : Scott {Your given name} : William {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 10-05-2001 {The name of the survey source that was observed} : J1504+10 {The name of the calibration source(s) observed} : 1611+343 {The year the experiment took place (e.g. 1998)} : 2000 {The starting day number of the experiment} : 209 {List the GRTs that observed} : Mp, Ho, Sh, Kl, Hh {List the tracking stations that took part} : TZ, RZ, 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)} : 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)} : 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 = VS04Z.FITLD #--------------------------------------------------------- #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file name = VS04Z.FITLD, Output file name = VS04Z.UVSRT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FIXWT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not done. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : CPARM(1)=3 CPARM(2)=60 CPARM(3)=0.25 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Created NX(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : ANTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : For Halca used a Tsys of 88K, 92K. Could not find Tsys values for SH on the EVN FTP site, so used nominal values. For KL, used a nominal number for the gain. There were no Tsys values for MP on either the ATNF or JPL web site, so used nominal values for gain and Tsys for MP as well. For Hh had both (non-nominal) gain and Tsys values. For HO, had Tsys values (actually numbers were SEFDs according to R. Dodson), so used these in conjunction with a DPFU of 1. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : {Input CL} : {Input SN} : 1 {Output SN} : {Output CL} : {Comments} : Input: Ty(1) + GC(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 1 {Output SN} : 2 {Output CL} : {Comments} : Extremely minor editting. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = '2PT' REFANT 1 (Hh) {Input CL} : 1 {Input SN} : 1 {Output SN} : {Output CL} : 2 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {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} : TBIN {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : 3 {Output CL} : {Comments} : Read in DQA1 delay and rate solutions using antenna 6 (Se) as the reference antenna. antenna. Will also later read in DQA1 solutions using antenna 1 (Hh) as the refant. Hh comes on line at about 0:11:44 until the end of the observation. Have to use two refants since there is no antenna which observes for the entire timerange. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TAFLG {ADVERBs} : OPTYPE '>= ' APARM 1,0 BPARM 1,0.4889 CPARM 0 {Input CL} : {Input SN} : 3 {Output SN} : 4 {Output CL} : {Comments} : Remove solutions with times greater than about 0:11:44. After this time Hh will be used as a reference antenna, so do not want to apply the delay offsets to Se after this time. I had lots of problems getting CLCAL to produce correct delays when there was a time interval where there were two sets of DQA1 solutions. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBIN {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : 5 {Output CL} : {Comments} : Read in DQA1 delay and rate solutions using antenna 1 (Hh) as the reference antenna. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Did not bother to edit DQA1 solutions. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = 'AMBG' REFANT 6 (Se) {Input CL} : 2 {Input SN} : 4 {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = 'AMBG' REFANT 1 (Hh) {Input CL} : 2 {Input SN} : 5 {Output SN} : {Output CL} : 4 {Comments} : Note, cannot use CL(3) as the input CL, since the last solution from SN(4) was interpolated over the entire timerange. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : DOCALIB 1 GAINUSE 3 TIMER 0 0 0 0 0 11 44 52 SOLINT 5 REFANT 6 (Se) SEARCH 0 APARM(1)=2 APARM(7)=3 (SNR=3) DPARM(1)=3 (include baseline stacking) DPARM(2)=20 (20 ns delay window) DPARM(3)=10 (10mHz rate window) DPARM(4)=0.5 DPARM(5)=0 DPARM(6)=1 {Input CL} : 3 {Input SN} : {Output SN} : 6 {Output CL} : {Comments} : Solutions looked great. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : DOCALIB 1 GAINUSE 4 TIMER 0 11 44 52 0 23 0 0 SOLINT 5 REFANT 1 (Hh) SEARCH 0 APARM(1)=2 APARM(7)=3 (SNR=3) DPARM(1)=3 (include baseline stacking) DPARM(2)=20 (20 ns delay window) DPARM(3)=10 (10mHz rate window) DPARM(4)=0.5 DPARM(5)=0 DPARM(6)=1 {Input CL} : 4 {Input SN} : {Output SN} : 7 {Output CL} : {Comments} : Solutions looked great. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 6 {Output SN} : 8 {Output CL} : {Comments} : Minor editting. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 7 {Output SN} : 9 {Output CL} : {Comments} : Minor editting. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALP' INTERPOL = 'AMBG' SMOTYPE = '' REFANT 6 Timer 0 0 0 0 0 11 44 52 {Input CL} : 3 {Input SN} : 8 {Output SN} : {Output CL} : 5 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALP' INTERPOL = 'AMBG' SMOTYPE = '' REFANT 1 Timer 0 11 44 52 0 23 0 0 {Input CL} : 4 {Input SN} : 9 {Output SN} : {Output CL} : 6 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TABED {ADVERBs} : OPTYPE 'COPY' APARM 0 KEYWORD '' KEYVALUE 0 {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : 7 {Comments} : Will combine CL(5) and CL(6) into CL(7). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TABED {ADVERBs} : OPTYPE 'COPY' APARM 0 KEYWORD '' KEYVALUE 0 {Input CL} : 6 {Input SN} : {Output SN} : {Output CL} : 7 {Comments} : Combined CL(5) and CL(6) into CL(7). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 7 {Input SN} : {Output SN} : {Output CL} : 8 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : OPCODE 'GAIN' ANTENNAS 2,0 CLCORPRM 3,0 {Input CL} : 8 {Input SN} : {Output SN} : {Output CL} : 8 {Comments} : After the first round of AIPSing, and looking at the crossing points (Hh-Mp + Hh-Ho) and (Ho-Kl + Mp-Kl), it seems Ho is down by about a factor of 3. Apply this factor. Note, this if very suspicious, since it roughly corresponds to a DPFU of 0.1 for Ho. Formerly set the DPFU to 1 as I was informed the Ho values in the Tsys file were SEFDs. Not really enough info to make a global amplitude change to all GRTs using the target/calibrator sources. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : SOURCES 'J1504+10' DOCALIB 1, GAINUSE 8 {Input CL} : 8 {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS04Z.UVSRT, Output file: J1504+10.FITS #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: J1504+10.FITS, Output file: J1504+10.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} : Hh, Ho, Kl, Mp, VSOP, Se {Amplitude correction factors} : 1.0, 3.0, 1.0, 1.0, 1.0, 1.0 #------------------------------------------------------------------------- # 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} : Had lots of problems. Shortest spacings (Mp-Ho) seemed very high compared to the rest of the visibilities. Howvever, couldn't rule out a-priori that this was legitimate. Gscale attempts were all over the map, depending on the model I used so decided to forgo gscale. Had to apply a large taper on later iterations of clean/phase-self-cal in order to pick up the high short spacing flux. Final image looked a little ratty, but this may be due to the fact that no amp-self cal was applied. # 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 #-------------------------------------------------------------------------