VS03L Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: David Moffett \& Richard Dodson
Date Prepared: 07-07-1999
 

Summary
 
Observation code : VS03L    AIPS Version : 15APR99   
Date of Observation : 1998/53    Difmap Version : 2.3c 
Source Name : J1626-29    vsop_difmap used : Yes 
Calibration Source(s) : 1622-253         
Ground telescopes : HH, HO, SH  Model Fitted to data : Yes 
Tracking Station(s) : TDBIN    Image made : Yes 
Correlator : Penticton         

 
Abstract
Followed guidelines for survey data reduction.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.615365 0.123686 97.9460 0.352554 1.00000 180.000 0.2416
0.466416 0.312255 -79.1678 0.527749 1.00000 180.000 0.0817
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


AIPS Data Reduction Notes
 
Task
Adverbs
CL
in
SN
in
CL
out
SN
out
Comments
FITLD dotable=1,douvcomp=1,digicor=-1,delcorr=-1
 
 
1 
 
 Created VS03L.MULTI.1 
UVSRT sort='TB'
1 
 
1 
 
 Created VS03L.UVSRT.1 
INDXR cparm(1)=10,cparm(2)=60,cparm(3)=0.25,infile='INDXR.TXT'
1 
 
1 
 
 Regenerated NX table. 
FIXWT bchan=127, xinc=5
1 
 
1 
 
 Created VS03L.FIXWT 
INDXR cparm(1)=10,cparm(2)=60,cparm(3)=0.25
1 
 
1 
 
 Regenerated NX table, since FIXWT modifies start and stop scan times. 
ANTAB Infile='ANTAB.TXT'
1 
 
1 
 
 Loaded system temperature and gain information for GRTs. 
APCAL
1 
 
1 
1 
 Created amplitude gain solutions. 
CLCAL
1 
1 
2 
1 
 Applied amplitude gains to form new CL table. 
FRING calsour='J1626-29',solint=5,refant=1,aparm(1)=2,aparm(4)=-1,
aparm(5)=-1,aparm(7)=2,dparm=1,4000,100,1,1
2 
 
1 
2 
 Our delays and rates agreed with those found in the Penticton correlator DQA1 report. Removed SN table 2. 
TACOP
2 
 
3 
 
 Copied CL table 2 to 3, so that delay correlations could be made to calibration table. 
CLCOR antennas=2;bif=1;eif=2;gainver=3;opcode='sbdl';clcorprm=-450,-450
3 
 
3 
 
 Delay correction for HOBART, referenced to HARTRAO. 
CLCOR antennas=4;bif=1;eif=2;gainver=3;opcode='sbdl';clcorprm=1860,1860
3 
 
3 
 
 Delay correction for HALCA, referenced to HARTRAO. 
CLCOR antennas=3;bif=1;eif=2;gainver=3;opcode='sbdl';clcorprm=2080,2080
3 
 
3 
 
 Delay correction for SESHAN, referenced to HARTRAO. 
CLCOR bif=1;eif=2;gainver=3;opcode='gain';clcorprm=0.906
3 
 
3 
 
 Global gain correction for Penticton correlator output. 
FRING calsour='J1626-29',solint=5,refant=1,aparm(1)=2,aparm(4)=-1,
aparm(5)=-1,aparm(7)=2,dparm=1,100,100,1,1
3 
 
3 
3 
 Very low SNR to HALCA. 
FRING calsour='J1626-29',solint=30,refant=1,aparm(1)=2,aparm(4)=-1,
aparm(5)=-1,aparm(7)=2,dparm=1,100,100,1,1
3 
 
3 
4 
 Increased solution interval to pick up better HALCA results. 
FRING calsour='J1626-29',solint=5,refant=1,aparm(1)=2,aparm(4)=-1,
aparm(5)=-1,aparm(7)=2,dparm=1,100,100,1,1
3 
 
3 
4 
  
CLCAL calsour='J1626-29'
3 
4 
4 
 
 Applying solutions from FRING 
FRING calsour='J1626-29',solint=5,refant=1,aparm(1)=2,aparm(4)=-1,
aparm(5)=-1,aparm(7)=2,dparm=1,100,100,1,0
4 
 
4 
5 
 LLS fitting of ALL baselines (including Halca). 
CLCAL calsour='J1626-29'
4 
5 
5 
 
 Applying solutions from LLS FRING 
TACOP
5 
 
6 
 
 Copied CL table and applied a gain correction of 0.75 for Seshan using CLCOR. This was not used. 
SPLIT
5 
 
 
 
 created J1626-29.SPLIT without the Seshan correction. 

AIPS Input Files
INDXR.TXT
ANTAB.TXT		 Comments
- None -

Additional Files
NameDescription
VS03L.NOTESPersonal notes of data reduction, prior to checklist.

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
SN_APCAL_AMP_2.PS
SN_APCAL_AMP_1.PS
SN_FRING01_DEL_1.PS
SN_FRING01_DEL_2.PS
SN_FRING01_RAT_1.PS
SN_FRING01_RAT_2.PS		 SN_FRING01_SNR_1.PS
SN_FRING01_SNR_2.PS
SN_FRING02_DEL_1.PS
SN_FRING02_DEL_2.PS
SN_FRING02_RAT_1.PS
SN_FRING02_RAT_2.PS
SN_FRING02_SNR_1.PS
SN_FRING02_SNR_2.PS
SN_FRING03_DEL_1.PS
SN_FRING03_DEL_2.PS
SN_FRING03_RAT_1.PS
SN_FRING03_RAT_2.PS
SN_FRING03_SNR_1.PS		 SN_FRING03_SNR_2.PS
SN_CALIB_DEL_1.PS
SN_CALIB_DEL_2.PS
SN_CALIB_RAT_1.PS
SN_CALIB_RAT_2.PS
SN_CALIB_SNR_1.PS
SN_CALIB_SNR_2.PS
SN_CALIB_PHA_1.PS
SN_CALIB_PHA_2.PS
WEIGHTS.PS
VPLOT_AP_2.PS
VPLOT_AP_1.PS


Difmap Data Reduction Notes
Phase selfcal applied? Yes
Global amplitude selfcal (gscal) applied? Yes
Amplitude selfcal on non-global timescales used? No
Modelfit made and saved? Yes
Image Made and saved? Yes
Comments on Difmap processing

Image
Ampl, Phase vs (u,v) Distance
PS (106 kb)
GIF (9 kb)
 Ampl, Phase vs Time
PS (354 kb)
GIF 1, 2		 (u,v) Coverage
PS (55 kb)
GIF (5 kb)
Closure Phase vs Time
PS (190 kb)
GIF 1		 Clean Image
PS (31 kb)
GIF (73 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (146 kb)
GIF (10 kb)
 Ampl, Phase vs Time
PS (339 kb)
GIF 1, 2		 (u,v) Coverage
PS (75 kb)
GIF (5 kb)
Closure Phase vs Time
PS (186 kb)
GIF 1		 Image with model components
PS (34 kb)
GIF (7 kb)

More details on the Images and Modelfits are found in this page.

Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.615365 0.123686 97.9460 0.352554 1.00000 180.000 0.2416
0.466416 0.312255 -79.1678 0.527749 1.00000 180.000 0.0817
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Sat Sep 25 06:46:17 GMT 1999
by db_results.pl version 0.2.0.