VS10T Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 25-05-2005
 

Summary
 
Observation code : VS10T    AIPS Version : 31DEC03   
Date of Observation : 1998/189    Difmap Version : 2.3c 
Source Name : J1824+10    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : GB AR  Model Fitted to data : Yes 
Tracking Station(s) : NZ    Image made : Yes 
Correlator : Mitaka/Penticton         

 
Abstract
3 components, very compact core.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.124443 1.90099 122.293 0 0 0 0.0000
0.0220471 0.668406 -24.9592 0 0 0 0.0000
0.0372435 5.15135 128.189 0 0 0 0.0000
(*) 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 = 0.25
digicor = -1
delcorr = -1
 
 
 
 
  
INDXR cparm = 0, 0, 0.25;
 
 
1 
 
  
ANTAB infile='antab.txt'
 
 
 
 
  
APCAL
 
 
 
1 
  
CLCAL refant=1;
1 
1 
2 
 
 Amplitude calibration solutions applied. 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.078,0
3 
 
3 
 
  
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4,5 
 Full range searched 
CLCOR opty 'sbdl';clcorp -200;ante
   1
2 
 
2 
 
  
FRING dparm
   2,0,0,0.5,0;aparm(7)=0.1;solint
2 
 
 
6 
  
CLCAL opty 'ambg'
2 
6 
3 
 
 Not a smooth solution - 
SPLIT aparm(1)=2 0;
3 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap amplitude 

AIPS Input Files
ANTAB.TXT Comments
used nominal_tsys.pl

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
POSSM.PS
UVPLT_UV.PS
UVPLT_UVD.PS		 UVPLT_UVPA.PS
SN_APCAL_AMP_1.PS
SN_APCAL_AMP_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


Difmap Data Reduction Notes
Phase selfcal applied? Yes
Global amplitude selfcal (gscal) applied? No
Amplitude selfcal on non-global timescales used? No
Modelfit made and saved? Yes
Image Made and saved? Yes
Comments on Difmap processing
The phases require 3 components along the beam axis -- I am nervous about this but it seems to be inescapable. The UNSO image sort of supports it as well.

Core size looks to be 0.1 +- 0.05

Image
Ampl, Phase vs (u,v) Distance
PS (25 kb)
JPEG (39 kb)
 Ampl, Phase vs Time
PS (77 kb)
JPEG 1, 2		 (u,v) Coverage
PS (14 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (49 kb)
JPEG 1		 Clean Image
PS (38 kb)
JPEG (47 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (25 kb)
JPEG (39 kb)
 Ampl, Phase vs Time
PS (77 kb)
JPEG 1, 2		 (u,v) Coverage
PS (14 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (49 kb)
JPEG 1		 Image with model components
PS (38 kb)
JPEG (40 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)
0.124443 1.90099 122.293 0 0 0 0.0000
0.0220471 0.668406 -24.9592 0 0 0 0.0000
0.0372435 5.15135 128.189 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri Sep 2 10:17:28 UTC 2005
by db_results.pl version 0.3.