# # 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} : VS02a {Your family name} : Scott {Your given name} : William {The date you prepared this document (format is day-month-year, e.g 23-04-1999)} : 28-09-1999 {The name of the survey source that was observed} : J0609-15 {The name of the calibration source(s) observed} : {The year the experiment took place (e.g. 1998)} : 1998 {The starting day number of the experiment} : 94 {List the GRTs that observed} : Hh, Mp, Ud, Hb, Sh {List the tracking stations that took part} : RZ, UZ {Which correlator was used to correlate the data? (Mitaka/Penticton/Socorro)} : Penticton {AIPS Version used (e.g 15OCT98)} : 15OCT98 {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)} : 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)} : no {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)} : no {IF 2 [VPLOT_AP_1.PS] (yes/no)} : no {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 = VS02A.FITLD #--------------------------------------------------------- #--------------------------------------------------------- {Task} : MSORT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file name = VS02A.FITLD, Output file name = VS02A.UVSRT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FIXWT {ADVERBs} : IF=1 CHAN=100 XINC=10 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not used. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : INDXR {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : 1 {Comments} : Deleted CL(1) and NX(1), then reran INDXR since number input vis != number output vis after running FIXWT Output file name = VS02A.FIXWT #--------------------------------------------------------- #--------------------------------------------------------- {Task} : OBTAB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not Used #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBOUT {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Changed entries in AN(1) for MNTSTA, ie: VSOP_SC from 3 to 2, Hobart 2 --> 0 Hart from 1 to 0. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : UVFLG {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Manually editted Hh-Ho baseline (IF 1) since it caused IBLED to choke. Hh-Ho (IF 2) also caused IBLED to choke (for no obvious reason), but it did not need any flagging. Edits stored in FG(1). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : IBLED {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : (all baselines except Hh-Ho) Edits stored in FG(1). #--------------------------------------------------------- #--------------------------------------------------------- {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:VS02A_CAL.DAT'. Output sent to TY(1) and GC(1). A few of the Tsys values for Ho were very odd (either extremely large, or negative). These were editted out. For Usuda, used nominal Tsys values. For Mopra, used a typical tsys values from experiment VS04p (obs date Apr. 23/98). Had Tsys values for all other GRTs! For Halca, had to extrapolate tsys values from experiment V047n (obs date Apr. 11/98). Used a nominal DPFU value of 0.1 for Hobart and Mopra. For other antennas, had non-nominal gain curves. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : APCAL {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : 1 {Output CL} : {Comments} : Input: Ty(1) + GC(1) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNSMO {ADVERBs} : INTERPOL = MWF SMOTYPE = AMPL 1) ANTEN = 1,4,5,6 BPARM(1)=1 (window width = 1 hour) 2) ANTEN = 2 BPARM(1)=0.25 3) ANTEN = 3 BPARM(1)=10 {Input CL} : {Input SN} : 1 {Output SN} : 2 {Output CL} : {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALI INTERPOL = 2PT REFANT 3 (Hobart) {Input CL} : 1 {Input SN} : 2 {Output SN} : {Output CL} : 2 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : APARM(1)=1 APARM(7)=4 (SNR=4) APARM(9)=1 DPARM(1)=1 (no baseline stacking) 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 SEARCH 4,5,6 REFANT 3 (Hobart) {Input CL} : 2 {Input SN} : {Output SN} : 3 {Output CL} : {Comments} : These are the standard parameters I used (unless otherwise specified). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ DOCALIB 1, GAINUSE 2 CALSOUR='1213-172' TIMER 0 6 20 0 0 6 25 0 SOLINT 2 {Input CL} : 2 {Input SN} : {Output SN} : 3 {Output CL} : {Comments} : Obtained solutions for Mp and Se...solutions looked good. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBOUT {ADVERBs} : {Input CL} : {Input SN} : 3 {Output SN} : 3 {Output CL} : {Comments} : Removed the rate solutions and made sure there was only one solution for the relevant antennas (Ho, Mo, Se). Also had to renumber the rows. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = 2PT SMOTYPE = VLBI {Input CL} : 2 {Input SN} : 3 {Output SN} : {Output CL} : 3 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=4 TIMER 0 10 0 0 0 10 20 0 DOCALIB 1, GAINUSE 3 {Input CL} : 3 {Input SN} : {Output SN} : 4 {Output CL} : {Comments} : Got good solutions for other 3 antennas. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TBOUT {ADVERBs} : {Input CL} : {Input SN} : 4 {Output SN} : 4 {Output CL} : {Comments} : Removed the rate solutions and made sure there was only one solution for each antenna. Also had to renumber the rows. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE = CALP INTERPOL = 2PT SMOTYPE = VLBI {Input CL} : 3 {Input SN} : 4 {Output SN} : {Output CL} : 4 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=4 DPARM(3) 200 DOCALIB 1, GAINUSE 4 {Input CL} : 4 {Input SN} : {Output SN} : 5 {Output CL} : {Comments} : Good solutions except for Halca baselines. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=6 DPARM(2) 5000 DPARM(3) 50 APARM(7) = SNR = 3 TIMER 0 4 30 0 0 5 0 0 DOCALIB 1, GAINUSE 4 {Input CL} : 4 {Input SN} : {Output SN} : 6 {Output CL} : {Comments} : No Halca Solutions. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=2 DPARM(2) 5000 DPARM(3) 50 APARM(7) = SNR = 2 TIMER 0 4 30 0 0 5 0 0 DOCALIB 1, GAINUSE 4 {Input CL} : 4 {Input SN} : {Output SN} : 6 {Output CL} : {Comments} : Generated Halca solutions, although the delays looked somewhat random. There appears to be a delay jump in IF 1. Halca has perigee at 5:23, so it makes sense that a smaller SOLINT is better. Still have high SNR on non-space baselines. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=1, and later 2 DPARM(2) 5000 DPARM(3) 50 APARM(7) = SNR = 3 TIMER 0 4 30 0 0 5 0 0 DOCALIB 1, GAINUSE 4 {Input CL} : 4 {Input SN} : {Output SN} : 7 {Output CL} : {Comments} : Sparse, somewhat random Halca delay solutions... it looks like I need SNR = 2 to generate enough solutions, even though they might be bogus. Deleted SN tables 5 through 7. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FRING {ADVERBs} : Standard+ SOLINT=2 DPARM(2) 5000 DPARM(3) 50 APARM(7) = SNR = 2 DOCALIB 1, GAINUSE 4 {Input CL} : 4 {Input SN} : {Output SN} : 5 {Output CL} : {Comments} : Good solutions for all GRTs. Halca delays around 5:00 look somewhat random, but delays around 10:00 look slightly better. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SNEDT {ADVERBs} : {Input CL} : {Input SN} : 5 {Output SN} : 6 {Output CL} : {Comments} : Editted inconsistent delay/rates (except for Halca). #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCAL {ADVERBs} : OPCODE='CALI' INTERPOL = '2PT' {Input CL} : 4 {Input SN} : 6 {Output SN} : {Output CL} : 5 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CALIB {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Not used. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TACOP {ADVERBs} : {Input CL} : 5 {Input SN} : {Output SN} : {Output CL} : 6 {Comments} : #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=0 OPCODE=GAIN CLCORPRM=0.9055 GAINVER=6 {Input CL} : 6 {Input SN} : {Output SN} : {Output CL} : 6 {Comments} : Correction for Van Vleck normalization. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=3 OPCODE=GAIN CLCORPRM=0.6 GAINVER=6 {Input CL} : 6 {Input SN} : {Output SN} : {Output CL} : 6 {Comments} : Had assumed that the "tsys" values from Ho were truly "tsys" values. Instead, they are only proportional. ANTAB Ho Tsys values are about a factor of 2.8 too big, so multiply Ho baselines by 1/(2.8)**0.5. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : CLCOR {ADVERBs} : ANTENNAS=0 OPCODE=GAIN CLCORPRM=1.6 GAINVER=6 {Input CL} : 6 {Input SN} : {Output SN} : {Output CL} : 6 {Comments} : Based upon AT light curves and PLS data, it looks like all visibilities are low by about a factor of 2.5. So, multiply all antenna gains by (2.5)**0.5. #--------------------------------------------------------- #--------------------------------------------------------- {Task} : TASAV {ADVERBs} : OUTSEQ = 2 {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: VS02A.FIXWT, Output file: VS02A.TABLES #--------------------------------------------------------- #--------------------------------------------------------- {Task} : SPLIT {ADVERBs} : SOURCES 'J0609-15' BCHAN 0, ECHAN 0 DOCALIB 1, GAINUSE 6 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: VS02A.FIXWT, Output file: J0609-15.FITS (OUTSEQ=2) #--------------------------------------------------------- #--------------------------------------------------------- {Task} : FITTP {ADVERBs} : {Input CL} : {Input SN} : {Output SN} : {Output CL} : {Comments} : Input file: J0609-15.FITS Output file: J0609-15.FITS #--------------------------------------------------------- #------------------------------------------------------------------------- # Section 6 : Difmap data reduction notes #------------------------------------------------------------------------- {Phase Selfcal applied? (yes/no)} : y {Global Amplitude Selfcal applied? (yes/no)} : y {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} : Phase self-cal was run after adding clean components with solution intervals from 10 minutes down to one minute. Clean components were added in the central core, then on later iterations were added to the NE, where there was a large residual which did not correspond to any dirty beam sidelobe. This residual seems consistent with USNO images of the source. Gscale was run, with correction factors of: IF 1: VSOP_SC 1.11 HARTRAO 1.01 HOBART 1.00 MOP 0.94 SESHAN25 0.95 USUDA64 1.03 IF 1: VSOP_SC 1.04 HARTRAO 1.01 HOBART 0.97 MOP 0.94 SESHAN25 0.99 USUDA64 1.02 After gscale, the residuals were very small, and could not be differentiated from beam sidelobes, so non-global amp self-cal was not carried out. Final image: Source consisted of a core with a peak amplitude of 3.06 Jy/beam, and a secondary component to the NE. #------------------------------------------------------------------------- # Do not delete or alter anything past this line {VSOP Survey Checklist and Worksheet version} : 0.3 #-------------------------------------------------------------------------