VS03H Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 02-09-2004
 

Summary
 
Observation code : VS03H    AIPS Version : 31DEC03   
Date of Observation : 2002/60    Difmap Version : 2.4a 
Source Name : J0442-0017    vsop_difmap used : No 
Calibration Source(s) : J0423-01         
Ground telescopes : HH HO MP  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
1.74083 0.00000 0.00000 1.20868 1.00000 0.00000 0.0582
(*) 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. 
FRING refa 2;dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4 
 Full range searched 
FRING refa 3;dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
5 
 Full range searched 
SNEDT/SNCOR/CLCAL ante 1 4;opc 'zdel';refant=2;interp
   'ambg';opc 'calp'
2 
3 
3 
6 
 Zero the delays to HH . All to VSOP 
FRING dparm 2,50,20,0.5,0;aparm(5)=1;solint
   5
3 
 
 
7 
  
SNEDT/SNCOR/CLCAL refant=1;
3 
7 
4 
8 
 #8 got deleted 
FRING refa 3;search 2;dparm 2,50,20,0.5,0;aparm(5)=0/1;solint
   5
3 
 
 
8,9 
  
UVFLG ante 3;flagv 1;timer 0 10
    56 30 0 11 56 0/0 10 32 30
   0 10 40 30
 
 
 
 
 flag the bad section of Mopra & use it as a ref 
SNEDT/SNCOR/CLCAL refant=1;
3 
9 
5 
10 
  
KRING dofit 4;cparm 0.5 0 0,-1
5 
 
 
11 
  
SPLIT aparm(1)=2 0;
5 
 
 
 
 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
VPLOT.PS
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_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


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
Selfcal on 5 minutes. Both clean and model fitting suggest a double component, but as the VSOP data is uncalibrated I am not sure what this really means. So I have limited the model to a Guassian single source. I note that the 2cm data supports a two component model, so I fitted one with the VSOP data put back in. saved as double_source.

J0423-01 is fitted with a 2.6 Jy point source.

Image
Ampl, Phase vs (u,v) Distance
PS (23 kb)
JPEG (32 kb)
 Ampl, Phase vs Time
PS (107 kb)
JPEG 1, 2		 (u,v) Coverage
PS (13 kb)
JPEG (23 kb)
Closure Phase vs Time
PS (83 kb)
JPEG 1		 Clean Image
PS (30 kb)
JPEG (48 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (44 kb)
JPEG (41 kb)
 Ampl, Phase vs Time
PS (133 kb)
JPEG 1, 2		 (u,v) Coverage
PS (21 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (91 kb)
JPEG 1		 Image with model components
PS (33 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)
1.74083 0.00000 0.00000 1.20868 1.00000 0.00000 0.0582
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Sep 6 08:50:19 GMT 2004
by db_results.pl version 0.3.