VS11H Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 11-07-2004
 

Summary
 
Observation code : VS11H    AIPS Version : 31DEC00   
Date of Observation : 2002/265    Difmap Version : 2.4a 
Source Name : J0508+84    vsop_difmap used : Yes 
Calibration Source(s) : J0217+73         
Ground telescopes : SH UD  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
One Gaussian component is enough. Total flux less than VLBApls
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.188886 0.00437970 167.850 0.370873 0.493889 -17.4077 0.1357
(*) 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. Usuda as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.13,0
3 
 
3 
 
  
FRING dparm 2,200,200,1,0;aparm(7)=0.1;solint
   5,10,15
3 
 
 
3,4,5 
 Solutions from DQA look fine. 
SNEDT
 
3 
 
6 
 Best sols 5min. Flagged a few 
CLCAL opty 'ambg'
3 
6 
4 
 
  
CLCOR opcode 'gain';antenna 0;clcorprm
   1/sqrt(1.13),0
4 
 
4 
 
  
SPLIT aparm(1)=2 0;
4 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
Comments
- None -

AIPS Output Files
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
PRTAN.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
UVPLT_UVD.PS
UVPLT_UVPA.PS
UVPLT_UV.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
Selfcaled on 10 minute time scale.

Fit to one component. No sign of underlying point core.

core size 0.35x0.18: Error about 0.15x0.07.

Image
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (47 kb)
 Ampl, Phase vs Time
PS (106 kb)
JPEG 1, 2		 (u,v) Coverage
PS (21 kb)
JPEG (29 kb)
Closure Phase vs Time
PS (60 kb)
JPEG 1		 Clean Image
PS (31 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (47 kb)
 Ampl, Phase vs Time
PS (106 kb)
JPEG 1, 2		 (u,v) Coverage
PS (21 kb)
JPEG (29 kb)
Closure Phase vs Time
PS (60 kb)
JPEG 1		 Image with model components
PS (31 kb)
JPEG (36 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)
0.188886 0.00437970 167.850 0.370873 0.493889 -17.4077 0.1357
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Oct 10 06:13:33 UTC 2005
by db_results.pl version 0.3.