VS13C Results
Submitted checklist.txt and checklist.tex is also available
  [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 5-3-2003
 

Summary
 
Observation code : VS13C    AIPS Version : 31DEC00   
Date of Observation : 2002/291    Difmap Version : 2.4a 
Source Name : J1949-19    vsop_difmap used : No 
Calibration Source(s) : j1924-29         
Ground telescopes : MP HO KA SH  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Mitaka         

 
Abstract
Delays imply that the position is wrong. I believe the position used is not that in VSOP survey & prelaunch papers. No Halca.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.207204 0.000487438 44.4801 0.00000 1.00000 0.00000 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;
 
 
 
 
ANTAB infile='antab.txt'
 
 
 
 
 
APCAL
 
 
 
 
ACCOR solint 5
 
 
 
 
CLCAL refant=3;
 
Amplitude calibration solutions applied. Mop as ref 
TACOP
 
 
 
CLCOR opco 'sbdl';ante 2;clcor
    375,375,0;ante 4;clcor
   130,130,0
 
 
 
Same sign as DQA, if 2nd antenna. Opposite to FRING value 
FRING docal 1;dparm 2,200,200,0.5,0;aparm(7)=0.5;solint
   5
 
 
flagver -1 again. Why is this? 
SNSMO bparm 1/12;cparm 0 0 0.5
   0.5 0 0 0 10 0
 
 
3,4 
smooth out the bad ones 
SNEDT
 
 
remove one bad solution (lost coherence?) from Shanghai 
CLCAL refant=3;
 
 
SPLIT aparm(1)=2 0;
 
 
 
Av within IF: Cal source for position offset. 
FITTP
 
 
 
 
Data written out for analysis in Difmap 

AIPS Input Files
ANTAB.TXT Comments
- None -

AIPS Output Files
PRTAN.LIS
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
POSSM.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_1.PS
SN_APCAL_AMP_2.PS
SN_CALIB_DEL_1.PS
SN_CALIB_DEL_2.PS
SN_CALIB_PHA_1.PS
SN_CALIB_PHA_2.PS
SN_CALIB_RAT_1.PS
SN_CALIB_RAT_2.PS
SN_CALIB_SNR_1.PS
SN_CALIB_SNR_2.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
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.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? No
Comments on Difmap processing
GRT only.

Modelfit
Ampl, Phase vs (u,v) Distance
PS (22 kb)
JPEG (37 kb)
Ampl, Phase vs Time
PS (127 kb)
JPEG 1, 2
(u,v) Coverage
PS (20 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (104 kb)
JPEG 1
Image with model components
PS (825 bytes)

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)
0.207204 0.000487438 44.4801 0.00000 1.00000 0.00000 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.



Last updated on Tue Aug 24 07:29:35 GMT 2004
by db_results.pl version 0.3.