VS08I1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 28-07-2004
 

Summary
 
Observation code : VS08I1    AIPS Version : 31DEC03   
Date of Observation : 2002/349    Difmap Version : 2.4a 
Source Name : J1436+6336    vsop_difmap used : No 
Calibration Source(s) : J1800+78         
Ground telescopes : SH KA  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Penticton         

 
Abstract
no space fringes.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
1.18204 0.00000 0.00000 3.38392 1.00000 0.00000 0.0050
(*) 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. Ka as ref 
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4,5 
 no decent sol to anyone 
FRING flagv -1; dparm 2,400,400,0.5,0;solint
   10,5
 
 
 
6,7 
 Why did it not work before? 
SNCOR/CLCAL refant=2;
2 
6 
3 
 
 zero VSP values 
FRING dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   10/5
3 
 
 
6,7 
  
KRING cparm 1/2,400/0,400/0,0.5,0;aparm(7)=0.1;solint
   10
3 
 
 
8,9 
  
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

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_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? No
Comments on Difmap processing
Imaged, but the pre-launch looks like there is an unresolved core. Though the flux & short baseline features are in reasonable agreement. However I can not justify a complex (VLBApls based) model based on the data available. The longer baselines do not see anything.

Modelfit
Ampl, Phase vs (u,v) Distance
PS (39 kb)
JPEG (42 kb)
 Ampl, Phase vs Time
PS (97 kb)
JPEG 1, 2		 (u,v) Coverage
PS (22 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (49 kb)
JPEG 1		 Image with model components
PS (32 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)
1.18204 0.00000 0.00000 3.38392 1.00000 0.00000 0.0050
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri Aug 6 10:48:54 GMT 2004
by db_results.pl version 0.3.