VS09M1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 14-09-2004
 

Summary
 
Observation code : VS09M1    AIPS Version : 31DEC03   
Date of Observation : 2002/53    Difmap Version : 2.4a 
Source Name : J0437-1844    vsop_difmap used : No 
Calibration Source(s) : J0423-01         
Ground telescopes : MP KA  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)
0.478204 0.236885 87.9614 0.661588 1.00000 -175.768 0.0533
0.323073 1.01701 -30.3345 0.725279 1.00000 0.00000 0.0300
(*) 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 
SNEDT/CLCAL interpo 'ambg'/'cube'
2 
2 
3,4 
5 
  
FRING dparm
   2,0,0,0.5,0;aparm(7)=0.1;solint
4 
 
 
6 
  
CLCAL refant=1;
4 
 
5 
 
  
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? Yes
Comments on Difmap processing
J0423-01 (the calibrator) flux (from PLS) fell from 3.14 to 2.3Jy.

J0437-18 (the target) flux (from PLS) fell from 1.1 to 0.54Jy. But the model still agreed.

Selfcal on 5 mins, but would restore flagged single baseline data (KA-MP).

Image
Ampl, Phase vs (u,v) Distance
PS (31 kb)
JPEG (37 kb)
 Ampl, Phase vs Time
PS (80 kb)
JPEG 1, 2		 (u,v) Coverage
PS (18 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (42 kb)
JPEG 1		 Clean Image
PS (33 kb)
JPEG (47 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (22 kb)
JPEG (36 kb)
 Ampl, Phase vs Time
PS (73 kb)
JPEG 1, 2		 (u,v) Coverage
PS (18 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (41 kb)
JPEG 1		 Image with model components
PS (825 bytes)
JPEG (0 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)
0.478204 0.236885 87.9614 0.661588 1.00000 -175.768 0.0533
0.323073 1.01701 -30.3345 0.725279 1.00000 0.00000 0.0300
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Tue Sep 14 07:04:18 GMT 2004
by db_results.pl version 0.3.