VS05E Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 15-09-2005
 

Summary
 
Observation code : VS05E    AIPS Version : 31DEC03   
Date of Observation : 2002/45    Difmap Version : 2.3c 
Source Name : J0428-3756    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : Mp Ho Ka  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
Space fringes on a near point source.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.501886 0.0405399 -54.2520 0.309777 1.00000 0.00000 0.2552
0.182791 0.639908 -72.4754 1.22279 1.00000 180.000 0.0060
(*) 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
   1.063,0
3 
 
3 
 
  
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4,5 
 needed flagv -1 
SNEDT/CLCAL refant=1;
2 
5 
3 
6 
  
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. No Cd or Hh

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
VPLOT.PS
POSSM.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
IMAGE.FITS


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
J0403-36: Point source for Ho-Mp. PLS Model is down by a factor of 2.9.

J0428-37: Space fringes & very poor uv coverage. Clean and the modelfit suggest an extension to the West (C.f. the PLS which extends to the East). There are indications of the E extension (1.2 mas in size), but they are at the noise level - unable to get E/W to swap.

Image
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (45 kb)
 Ampl, Phase vs Time
PS (147 kb)
JPEG 1, 2		 (u,v) Coverage
PS (25 kb)
JPEG (31 kb)
Closure Phase vs Time
PS (111 kb)
JPEG 1		 Clean Image
PS (35 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (146 kb)
JPEG 1, 2		 (u,v) Coverage
PS (25 kb)
JPEG (31 kb)
Closure Phase vs Time
PS (111 kb)
JPEG 1		 Image with model components
PS (35 kb)
JPEG (42 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)
0.501886 0.0405399 -54.2520 0.309777 1.00000 0.00000 0.2552
0.182791 0.639908 -72.4754 1.22279 1.00000 180.000 0.0060
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Thu Sep 15 13:40:17 UTC 2005
by db_results.pl version 0.3.