VS08A Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 20-09-2005
 

Summary
 
Observation code : VS08A    AIPS Version : 31DEC03   
Date of Observation : 1999/256    Difmap Version : 2.3c 
Source Name : J0416-18    vsop_difmap used : Yes 
Calibration Source(s) : 0607-157         
Ground telescopes : Ka Mp Hh  Model Fitted to data : Yes 
Tracking Station(s) : GZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Shinji has done this. I rechecked for fringes and amplitudes. No space fringes, but also the amplitudes looked fine to me. Resolving point source which would not produce space fringes. Lower than PLS, but so what is new. The amplitude from ACCOR for Mopra drops ~ 23:00. This correction looks to be too much. Raise this with someone.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.168502 0.00647820 104.937 0.544313 1.00000 0.00000 0.0278
(*) 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 
  
ACCOR solint 5
 
 
 
2 
  
CLCAL refant=1;
1 
1,2 
2,3 
 
 Amplitude calibration solutions applied. XX as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.063,0
3 
 
3 
 
  
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
3,4,5 
 Full range searched 
CLCAL refant=1;
3 
 
4 
 
  
FRING dparm
   2,0,0,0.5,0;aparm(7)=0.1;solint
4 
 
 
6 
  
CLCAL refant=1;
4 
 
5 
 
  
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

Additional Files
NameDescription
SNPLT.PSACCOR output showing the change in Mop gain
vplot.psvplot (difmap) output showing the same. I.e. the correction is incorrect!

AIPS Output Files
SNPLT.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

Image
Ampl, Phase vs (u,v) Distance
PS (24 kb)
JPEG (35 kb)
 Ampl, Phase vs Time
PS (130 kb)
JPEG 1, 2		 (u,v) Coverage
PS (14 kb)
JPEG (24 kb)
Closure Phase vs Time
PS (103 kb)
JPEG 1		 Clean Image
PS (29 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (24 kb)
JPEG (35 kb)
 Ampl, Phase vs Time
PS (130 kb)
JPEG 1, 2		 (u,v) Coverage
PS (14 kb)
JPEG (24 kb)
Closure Phase vs Time
PS (103 kb)
JPEG 1		 Image with model components
PS (30 kb)
JPEG (37 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)
0.168502 0.00647820 104.937 0.544313 1.00000 0.00000 0.0278
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Wed Sep 21 13:17:15 UTC 2005
by db_results.pl version 0.3.