VS07O Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Kaj Wiik
Date Prepared: 07-10-2005
 

Summary
 
Observation code : VS07O    AIPS Version : 31DEC05   
Date of Observation : 1999/261    Difmap Version : 2.3c 
Source Name : J0406-3826    vsop_difmap used : Yes 
Calibration Source(s) : J0423-01, J0403-36         
Ground telescopes : MK, FD, HN, KP, LA, PT, NL, OV, SC  Model Fitted to data : Yes 
Tracking Station(s) : RZ    Image made : Yes 
Correlator : Socorro         

 
Abstract
GOT extraction from w059b (MK, SC, PT, and FD + HALCA). J0406-3826 is a z= 1.285 QSO. The image shows a weak component 0.6 mas west of the core. Noise level is rather high despite the use of gscale but the model fits rather well to the closure phases.

EBF:09-OCT-2005

Fit two components. Position angle agrees with VLBApls. Core location ambiguous and both components could make up the core Best estimate of limit is 0.15 mas.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.482076 0.134680 143.431 0.0929945 1.00000 -24.1408 2.7203
0.0884107 0.374332 -161.054 0.0855821 1.00000 48.7046 0.5891
(*) 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 clint = 0
digicor = -1
delcorr = -1
 
 
 
 
  
INDXR cparm = 0, 0, 0.1;
 
 
1 
 
  
ANTAB infile='HALCA.ANTAB'
 
 
 
 
  
APCAL
 
 
 
6 
  
ACCOR
 
 
 
5 
  
CLCAL refant=3;
4 
6 
5 
 
 Amplitude calibration solutions applied. KP as ref 
CLCOR
 
 
 
 
  
FRING docal -1; dparm 3,500,500,0,1,0;aparm(7)=0.5;solint
   3
1 
 
 
1 
 Full range searched 
CLCAL refant=3;
1 
3 
2 
 
 SN1 edited & smoothed -> SN3 
FRING dparm 3,50,50,0,0;aparm(7)=0.5;solint
   5
2 
 
 
4 
 Final fitting 
CLCAL refant=3;
4 
6 
5 
 
  
SPLIT aparm(1)=2 0;
5 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap amplitude 

AIPS Input Files
Comments
- None -

Additional Files
NameDescription
SURVEY.08HSurvey run file

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.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_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
VPLOT.PS
VPLOT_AP_2.PS
POSSM.PS
POSSM01_AP_2.PS
IMAGE.FITS


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
EBF:09-OCT-2005

Fit two components. Position angle agrees with VLBApls. Core location ambiguous and both components could make up the core Best estimate of limit is 0.15 mas.

Image
Ampl, Phase vs (u,v) Distance
PS (81 kb)
JPEG (45 kb)
 Ampl, Phase vs Time
PS (560 kb)
JPEG 1, 2, 3, 4, 5		 (u,v) Coverage
PS (43 kb)
JPEG (30 kb)
Closure Phase vs Time
PS (1731 kb)
JPEG 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14		 Clean Image
PS (34 kb)
JPEG (46 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (81 kb)
JPEG (45 kb)
 Ampl, Phase vs Time
PS (559 kb)
JPEG 1, 2, 3, 4, 5		 (u,v) Coverage
PS (42 kb)
JPEG (30 kb)
Closure Phase vs Time
PS (1731 kb)
JPEG 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14		 Image with model components
PS (35 kb)
JPEG (39 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)
0.482076 0.134680 143.431 0.0929945 1.00000 -24.1408 2.7203
0.0884107 0.374332 -161.054 0.0855821 1.00000 48.7046 0.5891
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri May 5 07:31:07 UTC 2006
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